What is the IUPAC name of the given compound?

N-Ethylmethanamine N-Methylethanamine N-Ethyl-N-methylamine N-Ethyl-N-methylmethanamine

N-Methylethanamine

This is a secondary amine with an ethyl and a methyl group. The smaller alkyl group (CH3) is considered as the substituent which is attached to the N atom. Hence, it is N-methyl and not N-ethyl.