18268886 has 8 divisors (see below), whose sum is σ = 27585264. Its totient is φ = 9073800.

The previous prime is 18268849. The next prime is 18268891. The reversal of 18268886 is 68886281.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18268886.

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, 29945 + ... + 30548.

It is an arithmetic number, because the mean of its divisors is an integer number (3448158).

Almost surely, 2^18268886 is an apocalyptic number.

18268886 is a deficient number, since it is larger than the sum of its proper divisors (9316378).

18268886 is a wasteful number, since it uses less digits than its factorization.

18268886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60646.

The product of its digits is 294912, while the sum is 47.

The square root of 18268886 is about 4274.2117401926. The cubic root of 18268886 is about 263.3726591200.

The spelling of 18268886 in words is "eighteen million, two hundred sixty-eight thousand, eight hundred eighty-six".