399625088 has 32 divisors (see below), whose sum is σ = 811163160. Its totient is φ = 196039168.

The previous prime is 399624989. The next prime is 399625111. The reversal of 399625088 is 880526993.

It is a tau number, because it is divible by the number of its divisors (32).

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, 22670 + ... + 36237.

Almost surely, 2^399625088 is an apocalyptic number.

It is an amenable number.

399625088 is an abundant number, since it is smaller than the sum of its proper divisors (411538072).

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

399625088 is an equidigital number, since it uses as much as digits as its factorization.

399625088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58974 (or 58962 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 399625088 is about 19990.6250027357. The cubic root of 399625088 is about 736.5760298344.

The spelling of 399625088 in words is "three hundred ninety-nine million, six hundred twenty-five thousand, eighty-eight".