12393256 has 8 divisors (see below), whose sum is σ = 23237370. Its totient is φ = 6196624.

The previous prime is 12393247. The next prime is 12393259. The reversal of 12393256 is 65239321.

12393256 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., 9400356 + 2992900 = 3066^2 + 1730^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12393259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 774571 + ... + 774586.

Almost surely, 2^12393256 is an apocalyptic number.

12393256 is the 2227-th centered pentagonal number.

It is an amenable number.

12393256 is a deficient number, since it is larger than the sum of its proper divisors (10844114).

12393256 is a wasteful number, since it uses less digits than its factorization.

12393256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549163 (or 1549159 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 12393256 is about 3520.4056584434. The cubic root of 12393256 is about 231.4169365835.

The spelling of 12393256 in words is "twelve million, three hundred ninety-three thousand, two hundred fifty-six".