391064496 has 40 divisors (see below), whose sum is σ = 1018220544. Its totient is φ = 129326400.

The previous prime is 391064483. The next prime is 391064501. The reversal of 391064496 is 694460193.

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, 25980 + ... + 38171.

Almost surely, 2^391064496 is an apocalyptic number.

It is an amenable number.

391064496 is an abundant number, since it is smaller than the sum of its proper divisors (627156048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

391064496 is a wasteful number, since it uses less digits than its factorization.

391064496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64289 (or 64283 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 391064496 is about 19775.3507174968. The cubic root of 391064496 is about 731.2784852079.

The spelling of 391064496 in words is "three hundred ninety-one million, sixty-four thousand, four hundred ninety-six".