399894176 has 24 divisors (see below), whose sum is σ = 858864384. Its totient is φ = 181769920.

The previous prime is 399894167. The next prime is 399894199. The reversal of 399894176 is 671498993.

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, 567680 + ... + 568383.

It is an arithmetic number, because the mean of its divisors is an integer number (35786016).

Almost surely, 2^399894176 is an apocalyptic number.

It is an amenable number.

399894176 is an abundant number, since it is smaller than the sum of its proper divisors (458970208).

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

399894176 is a wasteful number, since it uses less digits than its factorization.

399894176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136084 (or 1136076 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 56.

The square root of 399894176 is about 19997.3542249969. The cubic root of 399894176 is about 736.7413175056.

The spelling of 399894176 in words is "three hundred ninety-nine million, eight hundred ninety-four thousand, one hundred seventy-six".