72234528 has 48 divisors (see below), whose sum is σ = 190403136. Its totient is φ = 23978240.

The previous prime is 72234527. The next prime is 72234571. The reversal of 72234528 is 82543227.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (72234527) 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, 23818 + ... + 26678.

It is an arithmetic number, because the mean of its divisors is an integer number (3966732).

Almost surely, 2^72234528 is an apocalyptic number.

It is an amenable number.

72234528 is an abundant number, since it is smaller than the sum of its proper divisors (118168608).

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

72234528 is a wasteful number, since it uses less digits than its factorization.

72234528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137 (or 3129 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 72234528 is about 8499.0898336234. The cubic root of 72234528 is about 416.4679768065.

The spelling of 72234528 in words is "seventy-two million, two hundred thirty-four thousand, five hundred twenty-eight".