72220356 has 48 divisors (see below), whose sum is σ = 201644800. Its totient is φ = 22221216.

The previous prime is 72220333. The next prime is 72220363. The reversal of 72220356 is 65302227.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 24316 + ... + 27123.

Almost surely, 2^72220356 is an apocalyptic number.

It is an amenable number.

72220356 is an abundant number, since it is smaller than the sum of its proper divisors (129424444).

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

72220356 is a wasteful number, since it uses less digits than its factorization.

72220356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51465 (or 51457 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 72220356 is about 8498.2560563918. The cubic root of 72220356 is about 416.4407388158.

The spelling of 72220356 in words is "seventy-two million, two hundred twenty thousand, three hundred fifty-six".