72734288 has 20 divisors (see below), whose sum is σ = 153734208. Its totient is φ = 33060960.

The previous prime is 72734243. The next prime is 72734309. The reversal of 72734288 is 88243727.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206456 + ... + 206807.

Almost surely, 2^72734288 is an apocalyptic number.

It is an amenable number.

72734288 is an abundant number, since it is smaller than the sum of its proper divisors (80999920).

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

72734288 is a wasteful number, since it uses less digits than its factorization.

72734288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413282 (or 413276 counting only the distinct ones).

The product of its digits is 150528, while the sum is 41.

The square root of 72734288 is about 8528.4399511282. The cubic root of 72734288 is about 417.4262252662.

The spelling of 72734288 in words is "seventy-two million, seven hundred thirty-four thousand, two hundred eighty-eight".