72057930 has 48 divisors (see below), whose sum is σ = 201178080. Its totient is φ = 16470048.

The previous prime is 72057929. The next prime is 72057941. The reversal of 72057930 is 3975027.

It is a junction number, because it is equal to n+sod(n) for n = 72057891 and 72057900.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23040 + ... + 25979.

It is an arithmetic number, because the mean of its divisors is an integer number (4191210).

Almost surely, 2^72057930 is an apocalyptic number.

72057930 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72057930 is an abundant number, since it is smaller than the sum of its proper divisors (129120150).

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

72057930 is a wasteful number, since it uses less digits than its factorization.

72057930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49043 (or 49036 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 72057930 is about 8488.6942458779. The cubic root of 72057930 is about 416.1283080855.

The spelling of 72057930 in words is "seventy-two million, fifty-seven thousand, nine hundred thirty".