12718880 has 24 divisors (see below), whose sum is σ = 30048732. Its totient is φ = 5087488.

The previous prime is 12718879. The next prime is 12718891. The reversal of 12718880 is 8881721.

It can be written as a sum of positive squares in 2 ways, for example, as 12418576 + 300304 = 3524^2 + 548^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12718880.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39587 + ... + 39906.

Almost surely, 2^12718880 is an apocalyptic number.

12718880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12718880 is an abundant number, since it is smaller than the sum of its proper divisors (17329852).

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

12718880 is an equidigital number, since it uses as much as digits as its factorization.

12718880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79508 (or 79500 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 35.

The square root of 12718880 is about 3566.3538803658. The cubic root of 12718880 is about 233.4262124574.

The spelling of 12718880 in words is "twelve million, seven hundred eighteen thousand, eight hundred eighty".