18907112 has 16 divisors (see below), whose sum is σ = 40515360. Its totient is φ = 8103024.

The previous prime is 18907103. The next prime is 18907123. The reversal of 18907112 is 21170981.

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, 168758 + ... + 168869.

It is an arithmetic number, because the mean of its divisors is an integer number (2532210).

Almost surely, 2^18907112 is an apocalyptic number.

It is an amenable number.

18907112 is an abundant number, since it is smaller than the sum of its proper divisors (21608248).

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

18907112 is a wasteful number, since it uses less digits than its factorization.

18907112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337640 (or 337636 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 18907112 is about 4348.2309046324. The cubic root of 18907112 is about 266.4046078315.

The spelling of 18907112 in words is "eighteen million, nine hundred seven thousand, one hundred twelve".