390513976 has 16 divisors (see below), whose sum is σ = 747793440. Its totient is φ = 191102400.

The previous prime is 390513943. The next prime is 390513997. The reversal of 390513976 is 679315093.

It is a happy number.

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, 518925 + ... + 519676.

It is an arithmetic number, because the mean of its divisors is an integer number (46737090).

Almost surely, 2^390513976 is an apocalyptic number.

It is an amenable number.

390513976 is a deficient number, since it is larger than the sum of its proper divisors (357279464).

390513976 is a wasteful number, since it uses less digits than its factorization.

390513976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038654 (or 1038650 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 390513976 is about 19761.4264667306. The cubic root of 390513976 is about 730.9351722798.

The spelling of 390513976 in words is "three hundred ninety million, five hundred thirteen thousand, nine hundred seventy-six".