22686 has 16 divisors (see below), whose sum is σ = 48000. Its totient is φ = 7128.

The previous prime is 22679. The next prime is 22691. The reversal of 22686 is 68622.

It is a plaindrome in base 12 and base 16.

It is a nialpdrome in base 13.

It is a zygodrome in base 12.

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, 15 + ... + 213.

It is an arithmetic number, because the mean of its divisors is an integer number (3000).

2²²⁶⁸⁶ is an apocalyptic number.

22686 is an abundant number, since it is smaller than the sum of its proper divisors (25314).

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 (24000).

22686 is a wasteful number, since it uses less digits than its factorization.

22686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223.

The product of its digits is 1152, while the sum is 24.

The square root of 22686 is about 150.6187239356. The cubic root of 22686 is about 28.3086597962.

The spelling of 22686 in words is "twenty-two thousand, six hundred eighty-six".