22252164 has 48 divisors (see below), whose sum is σ = 58605120. Its totient is φ = 6509440.

The previous prime is 22252163. The next prime is 22252177. The reversal of 22252164 is 46125222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22252163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 922 + ... + 6734.

It is an arithmetic number, because the mean of its divisors is an integer number (1220940).

Almost surely, 2^22252164 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 22252164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29302560).

22252164 is an abundant number, since it is smaller than the sum of its proper divisors (36352956).

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

22252164 is a wasteful number, since it uses less digits than its factorization.

22252164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860 (or 5858 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 22252164 is about 4717.2199439924. The cubic root of 22252164 is about 281.2704344659.

Adding to 22252164 its reverse (46125222), we get a palindrome (68377386).

The spelling of 22252164 in words is "twenty-two million, two hundred fifty-two thousand, one hundred sixty-four".