22813252 has 48 divisors (see below), whose sum is σ = 52714368. Its totient is φ = 8363520.

The previous prime is 22813247. The next prime is 22813277. The reversal of 22813252 is 25231822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3058 + ... + 7414.

It is an arithmetic number, because the mean of its divisors is an integer number (1098216).

Almost surely, 2^22813252 is an apocalyptic number.

22813252 is a gapful number since it is divisible by the number (22) 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 22813252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26357184).

22813252 is an abundant number, since it is smaller than the sum of its proper divisors (29901116).

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

22813252 is a wasteful number, since it uses less digits than its factorization.

22813252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396 (or 4394 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 22813252 is about 4776.3220159449. The cubic root of 22813252 is about 283.6149148380.

The spelling of 22813252 in words is "twenty-two million, eight hundred thirteen thousand, two hundred fifty-two".