239531364 has 48 divisors (see below), whose sum is σ = 634233600. Its totient is φ = 78143328.

The previous prime is 239531363. The next prime is 239531399. The reversal of 239531364 is 463135932.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239531363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18519 + ... + 28670.

It is an arithmetic number, because the mean of its divisors is an integer number (13213200).

Almost surely, 2^239531364 is an apocalyptic number.

It is an amenable number.

239531364 is an abundant number, since it is smaller than the sum of its proper divisors (394702236).

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

239531364 is a wasteful number, since it uses less digits than its factorization.

239531364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47249 (or 47241 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 239531364 is about 15476.8008322134. The cubic root of 239531364 is about 621.0417484594.

Subtracting from 239531364 its sum of digits (36), we obtain a triangular number (239531328 = T₂₁₈₈₇).

The spelling of 239531364 in words is "two hundred thirty-nine million, five hundred thirty-one thousand, three hundred sixty-four".