22817952 has 36 divisors (see below), whose sum is σ = 64889370. Its totient is φ = 7605888.

The previous prime is 22817947. The next prime is 22817957. The reversal of 22817952 is 25971822.

It is an interprime number because it is at equal distance from previous prime (22817947) and next prime (22817957).

It can be written as a sum of positive squares in only one way, i.e., 15397776 + 7420176 = 3924^2 + 2724^2 .

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 (36).

It is not an unprimeable number, because it can be changed into a prime (22817957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39327 + ... + 39902.

Almost surely, 2^22817952 is an apocalyptic number.

It is an amenable number.

22817952 is an abundant number, since it is smaller than the sum of its proper divisors (42071418).

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

22817952 is a wasteful number, since it uses less digits than its factorization.

22817952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79245 (or 79234 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 22817952 is about 4776.8140009843. The cubic root of 22817952 is about 283.6343903395.

The spelling of 22817952 in words is "twenty-two million, eight hundred seventeen thousand, nine hundred fifty-two".