12687268 has 48 divisors (see below), whose sum is σ = 25623360. Its totient is φ = 5443200.

The previous prime is 12687223. The next prime is 12687331. The reversal of 12687268 is 86278621.

It is a self number, because there is not a number n which added to its sum of digits gives 12687268.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 77755 + ... + 77917.

It is an arithmetic number, because the mean of its divisors is an integer number (533820).

Almost surely, 2^12687268 is an apocalyptic number.

It is an amenable number.

12687268 is an abundant number, since it is smaller than the sum of its proper divisors (12936092).

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

12687268 is a wasteful number, since it uses less digits than its factorization.

12687268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 266 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 12687268 is about 3561.9191456292. The cubic root of 12687268 is about 233.2326631487.

The spelling of 12687268 in words is "twelve million, six hundred eighty-seven thousand, two hundred sixty-eight".