390975856 has 20 divisors (see below), whose sum is σ = 757879072. Its totient is φ = 195394176.

The previous prime is 390975847. The next prime is 390975869. The reversal of 390975856 is 658579093.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38905 + ... + 47911.

Almost surely, 2^390975856 is an apocalyptic number.

It is an amenable number.

390975856 is a deficient number, since it is larger than the sum of its proper divisors (366903216).

390975856 is a wasteful number, since it uses less digits than its factorization.

390975856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11728 (or 11722 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 52.

The square root of 390975856 is about 19773.1094165789. The cubic root of 390975856 is about 731.2232296821.

The spelling of 390975856 in words is "three hundred ninety million, nine hundred seventy-five thousand, eight hundred fifty-six".