18162086 has 16 divisors (see below), whose sum is σ = 29148336. Its totient is φ = 8457216.

The previous prime is 18162071. The next prime is 18162107. The reversal of 18162086 is 68026181.

It is a super-2 number, since 2×18162086² = 659722735742792, which contains 22 as substring.

It is a Curzon number.

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, 545 + ... + 6051.

It is an arithmetic number, because the mean of its divisors is an integer number (1821771).

Almost surely, 2^18162086 is an apocalyptic number.

18162086 is a deficient number, since it is larger than the sum of its proper divisors (10986250).

18162086 is a wasteful number, since it uses less digits than its factorization.

18162086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5623.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 18162086 is about 4261.6998955816. The cubic root of 18162086 is about 262.8584297860.

The spelling of 18162086 in words is "eighteen million, one hundred sixty-two thousand, eighty-six".