12868880 has 20 divisors (see below), whose sum is σ = 29920332. Its totient is φ = 5147520.

The previous prime is 12868879. The next prime is 12868883. The reversal of 12868880 is 8886821.

It can be written as a sum of positive squares in 2 ways, for example, as 8133904 + 4734976 = 2852^2 + 2176^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (12868883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80351 + ... + 80510.

Almost surely, 2^12868880 is an apocalyptic number.

12868880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12868880 is an abundant number, since it is smaller than the sum of its proper divisors (17051452).

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

12868880 is a wasteful number, since it uses less digits than its factorization.

12868880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160874 (or 160868 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 41.

The square root of 12868880 is about 3587.3221210257. The cubic root of 12868880 is about 234.3402651932.

The spelling of 12868880 in words is "twelve million, eight hundred sixty-eight thousand, eight hundred eighty".