12180984 has 32 divisors (see below), whose sum is σ = 31777920. Its totient is φ = 3883616.

The previous prime is 12180983. The next prime is 12181031. The reversal of 12180984 is 48908121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12180983) 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, 10482 + ... + 11585.

It is an arithmetic number, because the mean of its divisors is an integer number (993060).

Almost surely, 2^12180984 is an apocalyptic number.

It is an amenable number.

12180984 is an abundant number, since it is smaller than the sum of its proper divisors (19596936).

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

12180984 is a wasteful number, since it uses less digits than its factorization.

12180984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22099 (or 22095 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 12180984 is about 3490.1266452666. The cubic root of 12180984 is about 230.0880822052.

The spelling of 12180984 in words is "twelve million, one hundred eighty thousand, nine hundred eighty-four".