72546216 has 16 divisors (see below), whose sum is σ = 181365600. Its totient is φ = 24182064.

The previous prime is 72546143. The next prime is 72546283. The reversal of 72546216 is 61264527.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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, 1511356 + ... + 1511403.

It is an arithmetic number, because the mean of its divisors is an integer number (11335350).

Almost surely, 2^72546216 is an apocalyptic number.

It is an amenable number.

72546216 is an abundant number, since it is smaller than the sum of its proper divisors (108819384).

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

72546216 is a wasteful number, since it uses less digits than its factorization.

72546216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3022768 (or 3022764 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 72546216 is about 8517.4066475659. The cubic root of 72546216 is about 417.0661294062.

The spelling of 72546216 in words is "seventy-two million, five hundred forty-six thousand, two hundred sixteen".