12118940 has 12 divisors (see below), whose sum is σ = 25449816. Its totient is φ = 4847568.

The previous prime is 12118933. The next prime is 12118961. The reversal of 12118940 is 4981121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302954 + ... + 302993.

It is an arithmetic number, because the mean of its divisors is an integer number (2120818).

Almost surely, 2^12118940 is an apocalyptic number.

12118940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12118940 is an abundant number, since it is smaller than the sum of its proper divisors (13330876).

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

12118940 is a wasteful number, since it uses less digits than its factorization.

12118940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605956 (or 605954 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 12118940 is about 3481.2267952548. The cubic root of 12118940 is about 229.6967648476.

The spelling of 12118940 in words is "twelve million, one hundred eighteen thousand, nine hundred forty".