390986472 has 32 divisors (see below), whose sum is σ = 978706080. Its totient is φ = 130163520.

The previous prime is 390986447. The next prime is 390986483. The reversal of 390986472 is 274689093.

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, 9783 + ... + 29625.

It is an arithmetic number, because the mean of its divisors is an integer number (30584565).

Almost surely, 2^390986472 is an apocalyptic number.

It is an amenable number.

390986472 is an abundant number, since it is smaller than the sum of its proper divisors (587719608).

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

390986472 is a wasteful number, since it uses less digits than its factorization.

390986472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20673 (or 20669 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 390986472 is about 19773.3778601432. The cubic root of 390986472 is about 731.2298478192.

The spelling of 390986472 in words is "three hundred ninety million, nine hundred eighty-six thousand, four hundred seventy-two".