399412496 has 20 divisors (see below), whose sum is σ = 884413632. Its totient is φ = 171176736.

The previous prime is 399412487. The next prime is 399412513. The reversal of 399412496 is 694214993.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 399412496.

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, 1782980 + ... + 1783203.

Almost surely, 2^399412496 is an apocalyptic number.

It is an amenable number.

399412496 is an abundant number, since it is smaller than the sum of its proper divisors (485001136).

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

399412496 is a wasteful number, since it uses less digits than its factorization.

399412496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3566198 (or 3566192 counting only the distinct ones).

The product of its digits is 419904, while the sum is 47.

The square root of 399412496 is about 19985.3070028959. The cubic root of 399412496 is about 736.4453924347.

The spelling of 399412496 in words is "three hundred ninety-nine million, four hundred twelve thousand, four hundred ninety-six".