72232072 has 32 divisors (see below), whose sum is σ = 155527200. Its totient is φ = 31104000.

The previous prime is 72232067. The next prime is 72232073. The reversal of 72232072 is 27023227.

It is not an unprimeable number, because it can be changed into a prime (72232073) 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, 19929 + ... + 23272.

It is an arithmetic number, because the mean of its divisors is an integer number (4860225).

Almost surely, 2^72232072 is an apocalyptic number.

It is an amenable number.

72232072 is an abundant number, since it is smaller than the sum of its proper divisors (83295128).

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

72232072 is a wasteful number, since it uses less digits than its factorization.

72232072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43237 (or 43233 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 72232072 is about 8498.9453463356. The cubic root of 72232072 is about 416.4632567325.

Adding to 72232072 its reverse (27023227), we get a palindrome (99255299).

The spelling of 72232072 in words is "seventy-two million, two hundred thirty-two thousand, seventy-two".