Getting multiple verification codes a day to my cell phone

[Kathie P. 1]

I get 1-2 verification codes sent to my cell phone via text per day. I sign in with Google. I've changed my password and added a passcode and FaceID. The messages say, "Your Evernote verification code for "my email address" is: _________. It comes from phone number 837401.

 

Is my account secure?

[PinkElephant 9,004]

It seems you have done most things right in securing your account. However when reading to me it is not entirely clear what you have done to secure your account:

You say you sign in with Google. Fine, but when you created your account, it most likely was done by an e-mail address and a password.

THIS is the password that probably is used to access your account, not your Google login.

No matter how it got exposed (usually by being a weak password, or a reused one), you should change THIS password ASAP. Because when you get the 2-FA note, it means that somebody used the correct UserID and password, and is only one step away from getting access. Better make this attempt a futile one by resetting the password.

The other stuff like a Passcode and FaceID only help with the local security of the app, not with the remote access that causes the messages to pop up.

[gazumped 12,217]

Sounds like someone else is using the wrong details to get to their account.  You've already done most of this I think,  but see:

What to do if you suspect unauthorized access to your Evernote account