12928544 has 12 divisors (see below), whose sum is σ = 25453134. Its totient is φ = 6464256.

The previous prime is 12928537. The next prime is 12928549. The reversal of 12928544 is 44582921.

It can be written as a sum of positive squares in only one way, i.e., 8880400 + 4048144 = 2980^2 + 2012^2 .

It is not an unprimeable number, because it can be changed into a prime (12928549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201977 + ... + 202040.

Almost surely, 2^12928544 is an apocalyptic number.

It is an amenable number.

12928544 is a deficient number, since it is larger than the sum of its proper divisors (12524590).

12928544 is an equidigital number, since it uses as much as digits as its factorization.

12928544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404027 (or 404019 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 12928544 is about 3595.6284568904. The cubic root of 12928544 is about 234.7018642682.

The spelling of 12928544 in words is "twelve million, nine hundred twenty-eight thousand, five hundred forty-four".