12189960 has 64 divisors (see below), whose sum is σ = 40636800. Its totient is φ = 3250368.

The previous prime is 12189959. The next prime is 12189979. The reversal of 12189960 is 6998121.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4564 + ... + 6723.

It is an arithmetic number, because the mean of its divisors is an integer number (634950).

Almost surely, 2^12189960 is an apocalyptic number.

12189960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12189960 is an abundant number, since it is smaller than the sum of its proper divisors (28446840).

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

12189960 is a wasteful number, since it uses less digits than its factorization.

12189960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11307 (or 11297 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 12189960 is about 3491.4123216830. The cubic root of 12189960 is about 230.1445845793.

The spelling of 12189960 in words is "twelve million, one hundred eighty-nine thousand, nine hundred sixty".