239139072 has 108 divisors (see below), whose sum is σ = 693848064. Its totient is φ = 79211520.

The previous prime is 239139071. The next prime is 239139077. The reversal of 239139072 is 270931932.

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 (239139071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 624193 + ... + 624575.

Almost surely, 2^239139072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239139072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346924032).

239139072 is an abundant number, since it is smaller than the sum of its proper divisors (454708992).

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

239139072 is a wasteful number, since it uses less digits than its factorization.

239139072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 239139072 is about 15464.1220895336. The cubic root of 239139072 is about 620.7025265888.

The spelling of 239139072 in words is "two hundred thirty-nine million, one hundred thirty-nine thousand, seventy-two".