72394422 has 16 divisors (see below), whose sum is σ = 148702512. Its totient is φ = 23479200.

The previous prime is 72394391. The next prime is 72394463. The reversal of 72394422 is 22449327.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162829 + ... + 163272.

It is an arithmetic number, because the mean of its divisors is an integer number (9293907).

Almost surely, 2^72394422 is an apocalyptic number.

72394422 is an abundant number, since it is smaller than the sum of its proper divisors (76308090).

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

72394422 is a wasteful number, since it uses less digits than its factorization.

72394422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326143.

The product of its digits is 24192, while the sum is 33.

The square root of 72394422 is about 8508.4911705895. The cubic root of 72394422 is about 416.7750398280.

The spelling of 72394422 in words is "seventy-two million, three hundred ninety-four thousand, four hundred twenty-two".