72212080 has 40 divisors (see below), whose sum is σ = 168386544. Its totient is φ = 28800000.

The previous prime is 72212011. The next prime is 72212087. The reversal of 72212080 is 8021227.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72212087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30955 + ... + 33205.

Almost surely, 2^72212080 is an apocalyptic number.

It is an amenable number.

72212080 is an abundant number, since it is smaller than the sum of its proper divisors (96174464).

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

72212080 is a wasteful number, since it uses less digits than its factorization.

72212080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665 (or 2659 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 72212080 is about 8497.7691190100. The cubic root of 72212080 is about 416.4248310422.

The spelling of 72212080 in words is "seventy-two million, two hundred twelve thousand, eighty".