22403952 has 100 divisors (see below), whose sum is σ = 66167640. Its totient is φ = 7316352.

The previous prime is 22403951. The next prime is 22403971. The reversal of 22403952 is 25930422.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22403951) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 76318 + ... + 76610.

Almost surely, 2^22403952 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 22403952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33083820).

22403952 is an abundant number, since it is smaller than the sum of its proper divisors (43763688).

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

22403952 is a wasteful number, since it uses less digits than its factorization.

22403952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 22403952 is about 4733.2813142681. The cubic root of 22403952 is about 281.9085262391.

The spelling of 22403952 in words is "twenty-two million, four hundred three thousand, nine hundred fifty-two".