12680988 has 24 divisors (see below), whose sum is σ = 30092160. Its totient is φ = 4155120.

The previous prime is 12680977. The next prime is 12681007. The reversal of 12680988 is 88908621.

It is a super-2 number, since 2×12680988² = 321614913312288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8248 + ... + 9663.

It is an arithmetic number, because the mean of its divisors is an integer number (1253840).

Almost surely, 2^12680988 is an apocalyptic number.

It is an amenable number.

12680988 is an abundant number, since it is smaller than the sum of its proper divisors (17411172).

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

12680988 is a wasteful number, since it uses less digits than its factorization.

12680988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17977 (or 17975 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 12680988 is about 3561.0374892719. The cubic root of 12680988 is about 233.1941746194.

The spelling of 12680988 in words is "twelve million, six hundred eighty thousand, nine hundred eighty-eight".