12806456 has 32 divisors (see below), whose sum is σ = 27224400. Its totient is φ = 5598720.

The previous prime is 12806449. The next prime is 12806459. The reversal of 12806456 is 65460821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12806459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1265 + ... + 5216.

Almost surely, 2^12806456 is an apocalyptic number.

It is an amenable number.

12806456 is an abundant number, since it is smaller than the sum of its proper divisors (14417944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12806456 is a wasteful number, since it uses less digits than its factorization.

12806456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6519 (or 6515 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 12806456 is about 3578.6109036887. The cubic root of 12806456 is about 233.9607404854.

The spelling of 12806456 in words is "twelve million, eight hundred six thousand, four hundred fifty-six".