239965838 has 12 divisors (see below), whose sum is σ = 418716072. Its totient is φ = 102842460.

The previous prime is 239965813. The next prime is 239965849. The reversal of 239965838 is 838569932.

It is a self number, because there is not a number n which added to its sum of digits gives 239965838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1224218 + ... + 1224413.

It is an arithmetic number, because the mean of its divisors is an integer number (34893006).

Almost surely, 2^239965838 is an apocalyptic number.

239965838 is a deficient number, since it is larger than the sum of its proper divisors (178750234).

239965838 is a wasteful number, since it uses less digits than its factorization.

239965838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448647 (or 2448640 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 53.

The square root of 239965838 is about 15490.8307717824. The cubic root of 239965838 is about 621.4170138814.

The spelling of 239965838 in words is "two hundred thirty-nine million, nine hundred sixty-five thousand, eight hundred thirty-eight".