12880544 has 12 divisors (see below), whose sum is σ = 25358634. Its totient is φ = 6440256.

The previous prime is 12880523. The next prime is 12880559. The reversal of 12880544 is 44508821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7772944 + 5107600 = 2788^2 + 2260^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 402517 = 12880544 / (1 + 2 + 8 + 8 + 0 + 5 + 4 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 12880544.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201227 + ... + 201290.

Almost surely, 2^12880544 is an apocalyptic number.

It is an amenable number.

12880544 is a deficient number, since it is larger than the sum of its proper divisors (12478090).

12880544 is an equidigital number, since it uses as much as digits as its factorization.

12880544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402527 (or 402519 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 12880544 is about 3588.9474780219. The cubic root of 12880544 is about 234.4110436774.

The spelling of 12880544 in words is "twelve million, eight hundred eighty thousand, five hundred forty-four".