72460731 has 16 divisors (see below), whose sum is σ = 110649600. Its totient is φ = 41318688.

The previous prime is 72460727. The next prime is 72460753. The reversal of 72460731 is 13706427.

It is not a de Polignac number, because 72460731 - 2² = 72460727 is a prime.

It is a super-2 number, since 2×72460731² = 10501115074108722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72460771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7300 + ... + 14078.

It is an arithmetic number, because the mean of its divisors is an integer number (6915600).

Almost surely, 2^72460731 is an apocalyptic number.

72460731 is a deficient number, since it is larger than the sum of its proper divisors (38188869).

72460731 is a wasteful number, since it uses less digits than its factorization.

72460731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7298.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 72460731 is about 8512.3869155484. The cubic root of 72460731 is about 416.9022480760.

The spelling of 72460731 in words is "seventy-two million, four hundred sixty thousand, seven hundred thirty-one".