22863872 has 28 divisors (see below), whose sum is σ = 45741336. Its totient is φ = 11427840.

The previous prime is 22863871. The next prime is 22863877. The reversal of 22863872 is 27836822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22863871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6797 + ... + 9587.

Almost surely, 2^22863872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22863872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22870668).

22863872 is an abundant number, since it is smaller than the sum of its proper divisors (22877464).

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

22863872 is an frugal number, since it uses more digits than its factorization.

22863872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817 (or 2793 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 22863872 is about 4781.6181361543. The cubic root of 22863872 is about 283.8245295760.

The spelling of 22863872 in words is "twenty-two million, eight hundred sixty-three thousand, eight hundred seventy-two".