399655152 has 60 divisors (see below), whose sum is σ = 1204521864. Its totient is φ = 122970240.

The previous prime is 399655079. The next prime is 399655169. The reversal of 399655152 is 251556993.

399655152 is a `hidden beast` number, since 3 + 9 + 96 + 551 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 399655098 and 399655107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104874 + ... + 108617.

Almost surely, 2^399655152 is an apocalyptic number.

It is an amenable number.

399655152 is an abundant number, since it is smaller than the sum of its proper divisors (804866712).

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

399655152 is a wasteful number, since it uses less digits than its factorization.

399655152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213518 (or 213509 counting only the distinct ones).

The product of its digits is 364500, while the sum is 45.

The square root of 399655152 is about 19991.3769410714. The cubic root of 399655152 is about 736.5945003685.

The spelling of 399655152 in words is "three hundred ninety-nine million, six hundred fifty-five thousand, one hundred fifty-two".