72422608 has 10 divisors (see below), whose sum is σ = 140318834. Its totient is φ = 36211296.

The previous prime is 72422591. The next prime is 72422617. The reversal of 72422608 is 80622427.

It can be written as a sum of positive squares in only one way, i.e., 39841344 + 32581264 = 6312^2 + 5708^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72422608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2263191 + ... + 2263222.

Almost surely, 2^72422608 is an apocalyptic number.

It is an amenable number.

72422608 is a deficient number, since it is larger than the sum of its proper divisors (67896226).

72422608 is a wasteful number, since it uses less digits than its factorization.

72422608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4526421 (or 4526415 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 72422608 is about 8510.1473547759. The cubic root of 72422608 is about 416.8291217895.

It can be divided in two parts, 724 and 22608, that added together give a palindrome (23332).

The spelling of 72422608 in words is "seventy-two million, four hundred twenty-two thousand, six hundred eight".