18116286 has 8 divisors (see below), whose sum is σ = 36232584. Its totient is φ = 6038760.

The previous prime is 18116281. The next prime is 18116311. The reversal of 18116286 is 68261181.

It is a sphenic number, since it is the product of 3 distinct primes.

18116286 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18116281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509685 + ... + 1509696.

It is an arithmetic number, because the mean of its divisors is an integer number (4529073).

Almost surely, 2^18116286 is an apocalyptic number.

18116286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18116286 is a wasteful number, since it uses less digits than its factorization.

18116286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019386.

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

The square root of 18116286 is about 4256.3230610469. The cubic root of 18116286 is about 262.6372905412.

The spelling of 18116286 in words is "eighteen million, one hundred sixteen thousand, two hundred eighty-six".