18106886 has 16 divisors (see below), whose sum is σ = 32674560. Its totient is φ = 7351560.

The previous prime is 18106877. The next prime is 18106897. The reversal of 18106886 is 68860181.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33770 + ... + 34301.

It is an arithmetic number, because the mean of its divisors is an integer number (2042160).

Almost surely, 2^18106886 is an apocalyptic number.

18106886 is a deficient number, since it is larger than the sum of its proper divisors (14567674).

18106886 is a wasteful number, since it uses less digits than its factorization.

18106886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68099.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 18106886 is about 4255.2186782820. The cubic root of 18106886 is about 262.5918577991.

The spelling of 18106886 in words is "eighteen million, one hundred six thousand, eight hundred eighty-six".