399933004 has 12 divisors (see below), whose sum is σ = 700026544. Its totient is φ = 199925424.

The previous prime is 399932999. The next prime is 399933029. The reversal of 399933004 is 400339993.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 25402 + ... + 38014.

Almost surely, 2^399933004 is an apocalyptic number.

It is an amenable number.

399933004 is a deficient number, since it is larger than the sum of its proper divisors (300093540).

399933004 is a wasteful number, since it uses less digits than its factorization.

399933004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20544 (or 20542 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 40.

The square root of 399933004 is about 19998.3250298619. The cubic root of 399933004 is about 736.7651615355.

The spelling of 399933004 in words is "three hundred ninety-nine million, nine hundred thirty-three thousand, four".