239731015240 has 16 divisors (see below), whose sum is σ = 539394784380. Its totient is φ = 95892406080.

The previous prime is 239731015219. The next prime is 239731015241. The reversal of 239731015240 is 42510137932.

It can be written as a sum of positive squares in 2 ways, for example, as 239349906756 + 381108484 = 489234^2 + 19522^2 .

It is a super-2 number, since 2×239731015240² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 239731015240.

It is not an unprimeable number, because it can be changed into a prime (239731015241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2996637651 + ... + 2996637730.

Almost surely, 2^239731015240 is an apocalyptic number.

239731015240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

239731015240 is an abundant number, since it is smaller than the sum of its proper divisors (299663769140).

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

239731015240 is a wasteful number, since it uses less digits than its factorization.

239731015240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5993275392 (or 5993275388 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 239731015240 in words is "two hundred thirty-nine billion, seven hundred thirty-one million, fifteen thousand, two hundred forty".