72732212 has 24 divisors (see below), whose sum is σ = 146805120. Its totient is φ = 30883680.

The previous prime is 72732211. The next prime is 72732217. The reversal of 72732212 is 21223727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72732211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8864 + ... + 14967.

It is an arithmetic number, because the mean of its divisors is an integer number (6116880).

Almost surely, 2^72732212 is an apocalyptic number.

It is an amenable number.

72732212 is an abundant number, since it is smaller than the sum of its proper divisors (74072908).

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

72732212 is a wasteful number, since it uses less digits than its factorization.

72732212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23951 (or 23949 counting only the distinct ones).

The product of its digits is 2352, while the sum is 26.

The square root of 72732212 is about 8528.3182398407. The cubic root of 72732212 is about 417.4222538009.

Adding to 72732212 its reverse (21223727), we get a palindrome (93955939).

The spelling of 72732212 in words is "seventy-two million, seven hundred thirty-two thousand, two hundred twelve".