16138372 has 24 divisors (see below), whose sum is σ = 31479840. Its totient is φ = 7194240.

The previous prime is 16138363. The next prime is 16138393. The reversal of 16138372 is 27383161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4954 + ... + 7537.

It is an arithmetic number, because the mean of its divisors is an integer number (1311660).

Almost surely, 2^16138372 is an apocalyptic number.

It is an amenable number.

16138372 is a deficient number, since it is larger than the sum of its proper divisors (15341468).

16138372 is a wasteful number, since it uses less digits than its factorization.

16138372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12531 (or 12529 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 16138372 is about 4017.2592647227. The cubic root of 16138372 is about 252.7085334125.

The spelling of 16138372 in words is "sixteen million, one hundred thirty-eight thousand, three hundred seventy-two".