72738422 has 32 divisors (see below), whose sum is σ = 118540800. Its totient is φ = 33365088.

The previous prime is 72738389. The next prime is 72738433. The reversal of 72738422 is 22483727.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248108 + ... + 248400.

It is an arithmetic number, because the mean of its divisors is an integer number (3704400).

Almost surely, 2^72738422 is an apocalyptic number.

72738422 is a deficient number, since it is larger than the sum of its proper divisors (45802378).

72738422 is a wasteful number, since it uses less digits than its factorization.

72738422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500.

The product of its digits is 37632, while the sum is 35.

The square root of 72738422 is about 8528.6823132299. The cubic root of 72738422 is about 417.4341335369.

The spelling of 72738422 in words is "seventy-two million, seven hundred thirty-eight thousand, four hundred twenty-two".