72575340 has 48 divisors (see below), whose sum is σ = 209771520. Its totient is φ = 18728640.

The previous prime is 72575333. The next prime is 72575353. The reversal of 72575340 is 4357527.

It is a super-2 number, since 2×72575340² = 10534359952231200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17650 + ... + 21369.

It is an arithmetic number, because the mean of its divisors is an integer number (4370240).

Almost surely, 2^72575340 is an apocalyptic number.

It is an amenable number.

72575340 is an abundant number, since it is smaller than the sum of its proper divisors (137196180).

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

72575340 is a wasteful number, since it uses less digits than its factorization.

72575340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39062 (or 39060 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 72575340 is about 8519.1161513387. The cubic root of 72575340 is about 417.1219329549.

The spelling of 72575340 in words is "seventy-two million, five hundred seventy-five thousand, three hundred forty".