72224504 has 16 divisors (see below), whose sum is σ = 147732120. Its totient is φ = 32829280.

The previous prime is 72224501. The next prime is 72224533. The reversal of 72224504 is 40542227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72224501) 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 3 ways as a sum of consecutive naturals, for example, 410279 + ... + 410454.

Almost surely, 2^72224504 is an apocalyptic number.

It is an amenable number.

72224504 is an abundant number, since it is smaller than the sum of its proper divisors (75507616).

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

72224504 is a wasteful number, since it uses less digits than its factorization.

72224504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820750 (or 820746 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 72224504 is about 8498.5001029593. The cubic root of 72224504 is about 416.4487114669.

The spelling of 72224504 in words is "seventy-two million, two hundred twenty-four thousand, five hundred four".