16390372 has 12 divisors (see below), whose sum is σ = 28754236. Its totient is φ = 8174880.

The previous prime is 16390343. The next prime is 16390373. The reversal of 16390372 is 27309361.

16390372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5788836 + 10601536 = 2406^2 + 3256^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16390373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3183 + ... + 6550.

Almost surely, 2^16390372 is an apocalyptic number.

It is an amenable number.

16390372 is a deficient number, since it is larger than the sum of its proper divisors (12363864).

16390372 is a wasteful number, since it uses less digits than its factorization.

16390372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10158 (or 10156 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 16390372 is about 4048.5024391743. The cubic root of 16390372 is about 254.0170902176.

The spelling of 16390372 in words is "sixteen million, three hundred ninety thousand, three hundred seventy-two".