12878456 has 8 divisors (see below), whose sum is σ = 24147120. Its totient is φ = 6439224.

The previous prime is 12878431. The next prime is 12878483. The reversal of 12878456 is 65487821.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804896 + ... + 804911.

It is an arithmetic number, because the mean of its divisors is an integer number (3018390).

Almost surely, 2^12878456 is an apocalyptic number.

It is an amenable number.

12878456 is a deficient number, since it is larger than the sum of its proper divisors (11268664).

12878456 is a wasteful number, since it uses less digits than its factorization.

12878456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609813 (or 1609809 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 12878456 is about 3588.6565731482. The cubic root of 12878456 is about 234.3983765957.

The spelling of 12878456 in words is "twelve million, eight hundred seventy-eight thousand, four hundred fifty-six".