239664992 has 24 divisors (see below), whose sum is σ = 539246736. Its totient is φ = 102713472.

The previous prime is 239664941. The next prime is 239665003. The reversal of 239664992 is 299466932.

It is a self number, because there is not a number n which added to its sum of digits gives 239664992.

It is a congruent number.

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, 534743 + ... + 535190.

It is an arithmetic number, because the mean of its divisors is an integer number (22468614).

Almost surely, 2^239664992 is an apocalyptic number.

It is an amenable number.

239664992 is an abundant number, since it is smaller than the sum of its proper divisors (299581744).

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

239664992 is a wasteful number, since it uses less digits than its factorization.

239664992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069950 (or 1069942 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 50.

The square root of 239664992 is about 15481.1172723418. The cubic root of 239664992 is about 621.1572143950.

The spelling of 239664992 in words is "two hundred thirty-nine million, six hundred sixty-four thousand, nine hundred ninety-two".