72621232 has 40 divisors (see below), whose sum is σ = 146948432. Its totient is φ = 34732800.

The previous prime is 72621223. The next prime is 72621239. The reversal of 72621232 is 23212627.

It is a junction number, because it is equal to n+sod(n) for n = 72621197 and 72621206.

It is not an unprimeable number, because it can be changed into a prime (72621239) 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, 35107 + ... + 37117.

Almost surely, 2^72621232 is an apocalyptic number.

It is an amenable number.

72621232 is an abundant number, since it is smaller than the sum of its proper divisors (74327200).

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

72621232 is a wasteful number, since it uses less digits than its factorization.

72621232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117 (or 2111 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 72621232 is about 8521.8091975824. The cubic root of 72621232 is about 417.2098348341.

Adding to 72621232 its reverse (23212627), we get a palindrome (95833859).

The spelling of 72621232 in words is "seventy-two million, six hundred twenty-one thousand, two hundred thirty-two".