72575320 has 16 divisors (see below), whose sum is σ = 163294560. Its totient is φ = 29030112.

The previous prime is 72575311. The next prime is 72575323. The reversal of 72575320 is 2357527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72575323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907152 + ... + 907231.

It is an arithmetic number, because the mean of its divisors is an integer number (10205910).

Almost surely, 2^72575320 is an apocalyptic number.

It is an amenable number.

72575320 is an abundant number, since it is smaller than the sum of its proper divisors (90719240).

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

72575320 is a wasteful number, since it uses less digits than its factorization.

72575320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814394 (or 1814390 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 72575320 is about 8519.1149775079. The cubic root of 72575320 is about 417.1218946386.

The spelling of 72575320 in words is "seventy-two million, five hundred seventy-five thousand, three hundred twenty".