399493032 has 32 divisors (see below), whose sum is σ = 1030951680. Its totient is φ = 128868480.

The previous prime is 399492991. The next prime is 399493051. The reversal of 399493032 is 230394993.

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, 267733 + ... + 269220.

It is an arithmetic number, because the mean of its divisors is an integer number (32217240).

Almost surely, 2^399493032 is an apocalyptic number.

It is an amenable number.

399493032 is an abundant number, since it is smaller than the sum of its proper divisors (631458648).

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

399493032 is a wasteful number, since it uses less digits than its factorization.

399493032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536993 (or 536989 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 42.

The square root of 399493032 is about 19987.3217815694. The cubic root of 399493032 is about 736.4948871140.

The spelling of 399493032 in words is "three hundred ninety-nine million, four hundred ninety-three thousand, thirty-two".