22868 has 6 divisors (see below), whose sum is σ = 40026. Its totient is φ = 11432.

The previous prime is 22861. The next prime is 22871. The reversal of 22868 is 86822.

It can be written as a sum of positive squares in only one way, i.e., 20164 + 2704 = 142^2 + 52^2 .

It is a plaindrome in base 7.

It is a nialpdrome in base 13.

It is a congruent number.

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

22868 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 as a sum of consecutive naturals, namely, 2855 + ... + 2862.

It is an arithmetic number, because the mean of its divisors is an integer number (6671).

2²²⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

22868 is a deficient number, since it is larger than the sum of its proper divisors (17158).

22868 is a wasteful number, since it uses less digits than its factorization.

22868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721 (or 5719 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 22868 is about 151.2216915657. The cubic root of 22868 is about 28.3841609756.

The spelling of 22868 in words is "twenty-two thousand, eight hundred sixty-eight".