72244732 has 12 divisors (see below), whose sum is σ = 144489520. Its totient is φ = 30962016.

The previous prime is 72244709. The next prime is 72244759. The reversal of 72244732 is 23744227.

72244732 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 72244694 and 72244703.

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, 1290057 + ... + 1290112.

Almost surely, 2^72244732 is an apocalyptic number.

It is an amenable number.

72244732 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72244732 is a wasteful number, since it uses less digits than its factorization.

72244732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580180 (or 2580178 counting only the distinct ones).

The product of its digits is 18816, while the sum is 31.

The square root of 72244732 is about 8499.6901119982. The cubic root of 72244732 is about 416.4875862613.

Adding to 72244732 its reverse (23744227), we get a palindrome (95988959).

It can be divided in two parts, 722 and 44732, that added together give a palindrome (45454).

The spelling of 72244732 in words is "seventy-two million, two hundred forty-four thousand, seven hundred thirty-two".