12604456 has 8 divisors (see below), whose sum is σ = 23633370. Its totient is φ = 6302224.

The previous prime is 12604453. The next prime is 12604477. The reversal of 12604456 is 65440621.

It can be written as a sum of positive squares in only one way, i.e., 9400356 + 3204100 = 3066^2 + 1790^2 .

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

It is a super-2 number, since 2×12604456² = 317744622111872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12604451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 787771 + ... + 787786.

Almost surely, 2^12604456 is an apocalyptic number.

It is an amenable number.

12604456 is a deficient number, since it is larger than the sum of its proper divisors (11028914).

12604456 is a wasteful number, since it uses less digits than its factorization.

12604456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575563 (or 1575559 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 12604456 is about 3550.2754822689. The cubic root of 12604456 is about 232.7241050335.

The spelling of 12604456 in words is "twelve million, six hundred four thousand, four hundred fifty-six".