72992236 has 24 divisors (see below), whose sum is σ = 131135760. Its totient is φ = 35535552.

The previous prime is 72992221. The next prime is 72992267. The reversal of 72992236 is 63229927.

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, 28230 + ... + 30706.

It is an arithmetic number, because the mean of its divisors is an integer number (5463990).

Almost surely, 2^72992236 is an apocalyptic number.

It is an amenable number.

72992236 is a deficient number, since it is larger than the sum of its proper divisors (58143524).

72992236 is a wasteful number, since it uses less digits than its factorization.

72992236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673 (or 2671 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 72992236 is about 8543.5493795026. The cubic root of 72992236 is about 417.9191024966.

The spelling of 72992236 in words is "seventy-two million, nine hundred ninety-two thousand, two hundred thirty-six".