12659880 has 32 divisors (see below), whose sum is σ = 37980000. Its totient is φ = 3375936.

The previous prime is 12659869. The next prime is 12659887. The reversal of 12659880 is 8895621.

It is a super-2 number, since 2×12659880² = 320545123228800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12659887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52630 + ... + 52869.

It is an arithmetic number, because the mean of its divisors is an integer number (1186875).

Almost surely, 2^12659880 is an apocalyptic number.

12659880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12659880 is an abundant number, since it is smaller than the sum of its proper divisors (25320120).

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

12659880 is a wasteful number, since it uses less digits than its factorization.

12659880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105513 (or 105509 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 12659880 is about 3558.0725119087. The cubic root of 12659880 is about 233.0647158247.

It can be divided in two parts, 126 and 59880, that added together give a palindrome (60006).

The spelling of 12659880 in words is "twelve million, six hundred fifty-nine thousand, eight hundred eighty".