18112268 has 12 divisors (see below), whose sum is σ = 31787280. Its totient is φ = 9030192.

The previous prime is 18112253. The next prime is 18112279. The reversal of 18112268 is 86221181.

It is a self number, because there is not a number n which added to its sum of digits gives 18112268.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4871 + ... + 7742.

It is an arithmetic number, because the mean of its divisors is an integer number (2648940).

Almost surely, 2^18112268 is an apocalyptic number.

It is an amenable number.

18112268 is a deficient number, since it is larger than the sum of its proper divisors (13675012).

18112268 is a wasteful number, since it uses less digits than its factorization.

18112268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12976 (or 12974 counting only the distinct ones).

The product of its digits is 1536, while the sum is 29.

The square root of 18112268 is about 4255.8510312275. The cubic root of 18112268 is about 262.6178723842.

The spelling of 18112268 in words is "eighteen million, one hundred twelve thousand, two hundred sixty-eight".