12740584 has 8 divisors (see below), whose sum is σ = 23888610. Its totient is φ = 6370288.

The previous prime is 12740579. The next prime is 12740587. The reversal of 12740584 is 48504721.

12740584 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8538084 + 4202500 = 2922^2 + 2050^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12740584² = 324644961322112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12740587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 796279 + ... + 796294.

Almost surely, 2^12740584 is an apocalyptic number.

It is an amenable number.

12740584 is a deficient number, since it is larger than the sum of its proper divisors (11148026).

12740584 is a wasteful number, since it uses less digits than its factorization.

12740584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592579 (or 1592575 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 12740584 is about 3569.3954670224. The cubic root of 12740584 is about 233.5589129120.

The spelling of 12740584 in words is "twelve million, seven hundred forty thousand, five hundred eighty-four".