72530970 has 32 divisors (see below), whose sum is σ = 175454208. Its totient is φ = 19188288.

The previous prime is 72530963. The next prime is 72530987. The reversal of 72530970 is 7903527.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5709 + ... + 13328.

It is an arithmetic number, because the mean of its divisors is an integer number (5482944).

Almost surely, 2^72530970 is an apocalyptic number.

72530970 is an abundant number, since it is smaller than the sum of its proper divisors (102923238).

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

72530970 is a wasteful number, since it uses less digits than its factorization.

72530970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19174.

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

The square root of 72530970 is about 8516.5116098083. The cubic root of 72530970 is about 417.0369110861.

The spelling of 72530970 in words is "seventy-two million, five hundred thirty thousand, nine hundred seventy".