12868280 has 16 divisors (see below), whose sum is σ = 28953720. Its totient is φ = 5147296.

The previous prime is 12868217. The next prime is 12868283. The reversal of 12868280 is 8286821.

It is a self number, because there is not a number n which added to its sum of digits gives 12868280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12868283) 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 3 ways as a sum of consecutive naturals, for example, 160814 + ... + 160893.

Almost surely, 2^12868280 is an apocalyptic number.

12868280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12868280 is an abundant number, since it is smaller than the sum of its proper divisors (16085440).

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

12868280 is a wasteful number, since it uses less digits than its factorization.

12868280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321718 (or 321714 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 12868280 is about 3587.2384922110. The cubic root of 12868280 is about 234.3366231683.

The spelling of 12868280 in words is "twelve million, eight hundred sixty-eight thousand, two hundred eighty".