18083286 has 24 divisors (see below), whose sum is σ = 42194880. Its totient is φ = 5564016.

The previous prime is 18083281. The next prime is 18083311. The reversal of 18083286 is 68238081.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18083286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18083281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38406 + ... + 38873.

It is an arithmetic number, because the mean of its divisors is an integer number (1758120).

Almost surely, 2^18083286 is an apocalyptic number.

18083286 is an abundant number, since it is smaller than the sum of its proper divisors (24111594).

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

18083286 is a wasteful number, since it uses less digits than its factorization.

18083286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77300 (or 77297 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 18083286 is about 4252.4447086353. Note that the first 3 decimals coincide. The cubic root of 18083286 is about 262.4777232796.

The spelling of 18083286 in words is "eighteen million, eighty-three thousand, two hundred eighty-six".