239361021938 has 16 divisors (see below), whose sum is σ = 380298081240. Its totient is φ = 112600048896.

The previous prime is 239361021931. The next prime is 239361021961. The reversal of 239361021938 is 839120163932.

It can be written as a sum of positive squares in 4 ways, for example, as 218194554769 + 21166467169 = 467113^2 + 145487^2 .

It is a junction number, because it is equal to n+sod(n) for n = 239361021892 and 239361021901.

It is not an unprimeable number, because it can be changed into a prime (239361021931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1167281 + ... + 1356932.

Almost surely, 2^239361021938 is an apocalyptic number.

239361021938 is a deficient number, since it is larger than the sum of its proper divisors (140937059302).

239361021938 is a wasteful number, since it uses less digits than its factorization.

239361021938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527021.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 239361021938 in words is "two hundred thirty-nine billion, three hundred sixty-one million, twenty-one thousand, nine hundred thirty-eight".