72339132 has 12 divisors (see below), whose sum is σ = 168791336. Its totient is φ = 24113040.

The previous prime is 72339119. The next prime is 72339139. The reversal of 72339132 is 23193327.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 72339132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72339139) 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, 3014119 + ... + 3014142.

Almost surely, 2^72339132 is an apocalyptic number.

It is an amenable number.

72339132 is an abundant number, since it is smaller than the sum of its proper divisors (96452204).

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

72339132 is a wasteful number, since it uses less digits than its factorization.

72339132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6028268 (or 6028266 counting only the distinct ones).

The product of its digits is 6804, while the sum is 30.

The square root of 72339132 is about 8505.2414427810. The cubic root of 72339132 is about 416.6689112057.

The spelling of 72339132 in words is "seventy-two million, three hundred thirty-nine thousand, one hundred thirty-two".