72810912 has 48 divisors (see below), whose sum is σ = 191600640. Its totient is φ = 24210432.

The previous prime is 72810901. The next prime is 72810929. The reversal of 72810912 is 21901827.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 72810912.

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, 56289 + ... + 57567.

It is an arithmetic number, because the mean of its divisors is an integer number (3991680).

Almost surely, 2^72810912 is an apocalyptic number.

It is an amenable number.

72810912 is an abundant number, since it is smaller than the sum of its proper divisors (118789728).

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

72810912 is a wasteful number, since it uses less digits than its factorization.

72810912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885 (or 1877 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 72810912 is about 8532.9310321835. The cubic root of 72810912 is about 417.5727569903.

The spelling of 72810912 in words is "seventy-two million, eight hundred ten thousand, nine hundred twelve".