72326632 has 16 divisors (see below), whose sum is σ = 154985760. Its totient is φ = 30997104.

The previous prime is 72326621. The next prime is 72326641. The reversal of 72326632 is 23662327.

It is a super-2 number, since 2×72326632² = 10462283392926848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72326594 and 72326603.

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, 645718 + ... + 645829.

It is an arithmetic number, because the mean of its divisors is an integer number (9686610).

Almost surely, 2^72326632 is an apocalyptic number.

It is an amenable number.

72326632 is an abundant number, since it is smaller than the sum of its proper divisors (82659128).

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

72326632 is a wasteful number, since it uses less digits than its factorization.

72326632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291560 (or 1291556 counting only the distinct ones).

The product of its digits is 18144, while the sum is 31.

The square root of 72326632 is about 8504.5065700486. The cubic root of 72326632 is about 416.6449100818.

Adding to 72326632 its reverse (23662327), we get a palindrome (95988959).

The spelling of 72326632 in words is "seventy-two million, three hundred twenty-six thousand, six hundred thirty-two".