22860 has 36 divisors (see below), whose sum is σ = 69888. Its totient is φ = 6048.

The previous prime is 22859. The next prime is 22861. The reversal of 22860 is 6822.

It is an interprime number because it is at equal distance from previous prime (22859) and next prime (22861).

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (22861) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 117 + ... + 243.

2²²⁸⁶⁰ is an apocalyptic number.

22860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34944).

22860 is an abundant number, since it is smaller than the sum of its proper divisors (47028).

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

22860 is a wasteful number, since it uses less digits than its factorization.

22860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 137 counting only the distinct ones).

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

The square root of 22860 is about 151.1952380202. The cubic root of 22860 is about 28.3808506763.

The spelling of 22860 in words is "twenty-two thousand, eight hundred sixty".