22818852 has 144 divisors (see below), whose sum is σ = 71565312. Its totient is φ = 5987520.

The previous prime is 22818847. The next prime is 22818863. The reversal of 22818852 is 25881822.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 179613 + ... + 179739.

Almost surely, 2^22818852 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 22818852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35782656).

22818852 is an abundant number, since it is smaller than the sum of its proper divisors (48746460).

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

22818852 is a wasteful number, since it uses less digits than its factorization.

22818852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 193 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 22818852 is about 4776.9082051051. The cubic root of 22818852 is about 283.6381193858.

The spelling of 22818852 in words is "twenty-two million, eight hundred eighteen thousand, eight hundred fifty-two".