22788252 has 36 divisors (see below), whose sum is σ = 57952440. Its totient is φ = 7550112.

The previous prime is 22788247. The next prime is 22788281. The reversal of 22788252 is 25288722.

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4399 + ... + 8057.

It is an arithmetic number, because the mean of its divisors is an integer number (1609790).

Almost surely, 2^22788252 is an apocalyptic number.

It is an amenable number.

22788252 is an abundant number, since it is smaller than the sum of its proper divisors (35164188).

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

22788252 is a wasteful number, since it uses less digits than its factorization.

22788252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842 (or 3837 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 22788252 is about 4773.7042220900. The cubic root of 22788252 is about 283.5112767647.

The spelling of 22788252 in words is "twenty-two million, seven hundred eighty-eight thousand, two hundred fifty-two".