72733572 has 24 divisors (see below), whose sum is σ = 188568800. Its totient is φ = 24244488.

The previous prime is 72733561. The next prime is 72733579. The reversal of 72733572 is 27533727.

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

It is not an unprimeable number, because it can be changed into a prime (72733579) 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, 336622 + ... + 336837.

Almost surely, 2^72733572 is an apocalyptic number.

It is an amenable number.

72733572 is an abundant number, since it is smaller than the sum of its proper divisors (115835228).

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

72733572 is a wasteful number, since it uses less digits than its factorization.

72733572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673472 (or 673464 counting only the distinct ones).

The product of its digits is 61740, while the sum is 36.

The square root of 72733572 is about 8528.3979738284. The cubic root of 72733572 is about 417.4248555401.

The spelling of 72733572 in words is "seventy-two million, seven hundred thirty-three thousand, five hundred seventy-two".