72215700 has 36 divisors (see below), whose sum is σ = 208944960. Its totient is φ = 19257440.

The previous prime is 72215687. The next prime is 72215723. The reversal of 72215700 is 751227.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 120060 + ... + 120659.

Almost surely, 2^72215700 is an apocalyptic number.

It is an amenable number.

72215700 is an abundant number, since it is smaller than the sum of its proper divisors (136729260).

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

72215700 is a wasteful number, since it uses less digits than its factorization.

72215700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240736 (or 240729 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 72215700 is about 8497.9821134196. The cubic root of 72215700 is about 416.4317894011.

Adding to 72215700 its reverse (751227), we get a palindrome (72966927).

It can be divided in two parts, 7221 and 5700, that added together give a palindrome (12921).

The spelling of 72215700 in words is "seventy-two million, two hundred fifteen thousand, seven hundred".