12318180 has 96 divisors (see below), whose sum is σ = 39889920. Its totient is φ = 2782080.

The previous prime is 12318143. The next prime is 12318193. The reversal of 12318180 is 8181321.

It is a self number, because there is not a number n which added to its sum of digits gives 12318180.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58275 + ... + 58485.

It is an arithmetic number, because the mean of its divisors is an integer number (415520).

Almost surely, 2^12318180 is an apocalyptic number.

12318180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12318180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19944960).

12318180 is an abundant number, since it is smaller than the sum of its proper divisors (27571740).

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

12318180 is a wasteful number, since it uses less digits than its factorization.

12318180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 12318180 is about 3509.7264850697. The cubic root of 12318180 is about 230.9486964645.

The spelling of 12318180 in words is "twelve million, three hundred eighteen thousand, one hundred eighty".