12539344 has 20 divisors (see below), whose sum is σ = 24390180. Its totient is φ = 6245120.

The previous prime is 12539333. The next prime is 12539357. The reversal of 12539344 is 44393521.

It can be written as a sum of positive squares in 2 ways, for example, as 8179600 + 4359744 = 2860^2 + 2088^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3102 + ... + 5890.

It is an arithmetic number, because the mean of its divisors is an integer number (1219509).

Almost surely, 2^12539344 is an apocalyptic number.

It is an amenable number.

12539344 is a deficient number, since it is larger than the sum of its proper divisors (11850836).

12539344 is a wasteful number, since it uses less digits than its factorization.

12539344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078 (or 3072 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 12539344 is about 3541.0936163846. The cubic root of 12539344 is about 232.3226782230.

The spelling of 12539344 in words is "twelve million, five hundred thirty-nine thousand, three hundred forty-four".