72212608 has 32 divisors (see below), whose sum is σ = 154930860. Its totient is φ = 33328128.

The previous prime is 72212599. The next prime is 72212627. The reversal of 72212608 is 80621227.

It can be written as a sum of positive squares in 2 ways, for example, as 72046144 + 166464 = 8488^2 + 408^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20035 + ... + 23362.

Almost surely, 2^72212608 is an apocalyptic number.

It is an amenable number.

72212608 is an abundant number, since it is smaller than the sum of its proper divisors (82718252).

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

72212608 is a wasteful number, since it uses less digits than its factorization.

72212608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43424 (or 43412 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 72212608 is about 8497.8001859305. The cubic root of 72212608 is about 416.4258459775.

The spelling of 72212608 in words is "seventy-two million, two hundred twelve thousand, six hundred eight".