12318980 has 12 divisors (see below), whose sum is σ = 25869900. Its totient is φ = 4927584.

The previous prime is 12318979. The next prime is 12318991. The reversal of 12318980 is 8981321.

It can be written as a sum of positive squares in 2 ways, for example, as 2795584 + 9523396 = 1672^2 + 3086^2 .

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 3 ways as a sum of consecutive naturals, for example, 307955 + ... + 307994.

It is an arithmetic number, because the mean of its divisors is an integer number (2155825).

Almost surely, 2^12318980 is an apocalyptic number.

12318980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12318980 is an abundant number, since it is smaller than the sum of its proper divisors (13550920).

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

12318980 is a wasteful number, since it uses less digits than its factorization.

12318980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615958 (or 615956 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 12318980 is about 3509.8404522143. The cubic root of 12318980 is about 230.9536959844.

The spelling of 12318980 in words is "twelve million, three hundred eighteen thousand, nine hundred eighty".