239859864 has 48 divisors (see below), whose sum is σ = 650473200. Its totient is φ = 79848384.

The previous prime is 239859853. The next prime is 239859877. The reversal of 239859864 is 468958932.

It is a self number, because there is not a number n which added to its sum of digits gives 239859864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69082 + ... + 72470.

It is an arithmetic number, because the mean of its divisors is an integer number (13551525).

Almost surely, 2^239859864 is an apocalyptic number.

239859864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

239859864 is an abundant number, since it is smaller than the sum of its proper divisors (410613336).

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

239859864 is a wasteful number, since it uses less digits than its factorization.

239859864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384 (or 4377 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 239859864 is about 15487.4098544592. The cubic root of 239859864 is about 621.3255234374.

The spelling of 239859864 in words is "two hundred thirty-nine million, eight hundred fifty-nine thousand, eight hundred sixty-four".