72772460 has 24 divisors (see below), whose sum is σ = 159467616. Its totient is φ = 27843200.

The previous prime is 72772439. The next prime is 72772463. The reversal of 72772460 is 6427727.

It is a self number, because there is not a number n which added to its sum of digits gives 72772460.

It is not an unprimeable number, because it can be changed into a prime (72772463) 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, 78641 + ... + 79560.

It is an arithmetic number, because the mean of its divisors is an integer number (6644484).

Almost surely, 2^72772460 is an apocalyptic number.

It is an amenable number.

72772460 is an abundant number, since it is smaller than the sum of its proper divisors (86695156).

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

72772460 is a wasteful number, since it uses less digits than its factorization.

72772460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158233 (or 158231 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 72772460 is about 8530.6775815289. The cubic root of 72772460 is about 417.4992362566.

The spelling of 72772460 in words is "seventy-two million, seven hundred seventy-two thousand, four hundred sixty".