72704460 has 24 divisors (see below), whose sum is σ = 203572656. Its totient is φ = 19387840.

The previous prime is 72704459. The next prime is 72704473. The reversal of 72704460 is 6440727.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605811 + ... + 605930.

It is an arithmetic number, because the mean of its divisors is an integer number (8482194).

Almost surely, 2^72704460 is an apocalyptic number.

It is an amenable number.

72704460 is an abundant number, since it is smaller than the sum of its proper divisors (130868196).

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

72704460 is a wasteful number, since it uses less digits than its factorization.

72704460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211753 (or 1211751 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 72704460 is about 8526.6910346277. The cubic root of 72704460 is about 417.3691559334.

The spelling of 72704460 in words is "seventy-two million, seven hundred four thousand, four hundred sixty".