22086 has 16 divisors (see below), whose sum is σ = 49200. Its totient is φ = 7344.

The previous prime is 22079. The next prime is 22091. The reversal of 22086 is 68022.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

22086 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151 + ... + 258.

It is an arithmetic number, because the mean of its divisors is an integer number (3075).

2²²⁰⁸⁶ is an apocalyptic number.

22086 is an abundant number, since it is smaller than the sum of its proper divisors (27114).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24600).

22086 is a wasteful number, since it uses less digits than its factorization.

22086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 22086 is about 148.6135929180. The cubic root of 22086 is about 28.0568572557.

The spelling of 22086 in words is "twenty-two thousand, eighty-six".