12875440 has 40 divisors (see below), whose sum is σ = 30109680. Its totient is φ = 5120256.

The previous prime is 12875419. The next prime is 12875441. The reversal of 12875440 is 4457821.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (12875441) 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, 17806 + ... + 18514.

It is an arithmetic number, because the mean of its divisors is an integer number (752742).

Almost surely, 2^12875440 is an apocalyptic number.

12875440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12875440 is an abundant number, since it is smaller than the sum of its proper divisors (17234240).

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

12875440 is a wasteful number, since it uses less digits than its factorization.

12875440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 12875440 is about 3588.2363355833. The cubic root of 12875440 is about 234.3800772826.

The spelling of 12875440 in words is "twelve million, eight hundred seventy-five thousand, four hundred forty".