72288234 has 16 divisors (see below), whose sum is σ = 160640640. Its totient is φ = 24096060.

The previous prime is 72288221. The next prime is 72288253. The reversal of 72288234 is 43288227.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669282 + ... + 669389.

It is an arithmetic number, because the mean of its divisors is an integer number (10040040).

Almost surely, 2^72288234 is an apocalyptic number.

72288234 is an abundant number, since it is smaller than the sum of its proper divisors (88352406).

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

72288234 is a wasteful number, since it uses less digits than its factorization.

72288234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338682 (or 1338676 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 72288234 is about 8502.2487613572. The cubic root of 72288234 is about 416.5711651702.

The spelling of 72288234 in words is "seventy-two million, two hundred eighty-eight thousand, two hundred thirty-four".