390371056 has 20 divisors (see below), whose sum is σ = 756707272. Its totient is φ = 195091776.

The previous prime is 390371041. The next prime is 390371083. The reversal of 390371056 is 650173093.

It is a super-2 number, since 2×390371056² = 304779122725110272, which contains 22 as substring.

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, 38806 + ... + 47818.

Almost surely, 2^390371056 is an apocalyptic number.

It is an amenable number.

390371056 is a deficient number, since it is larger than the sum of its proper divisors (366336216).

390371056 is a wasteful number, since it uses less digits than its factorization.

390371056 is an evil number, because the sum of its binary digits is even.

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

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 390371056 is about 19757.8100000987. The cubic root of 390371056 is about 730.8459923718.

The spelling of 390371056 in words is "three hundred ninety million, three hundred seventy-one thousand, fifty-six".