22252356 has 72 divisors (see below), whose sum is σ = 64733760. Its totient is φ = 6313536.

The previous prime is 22252343. The next prime is 22252357. The reversal of 22252356 is 65325222.

It is not an unprimeable number, because it can be changed into a prime (22252357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57010 + ... + 57398.

It is an arithmetic number, because the mean of its divisors is an integer number (899080).

Almost surely, 2^22252356 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 22252356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32366880).

22252356 is an abundant number, since it is smaller than the sum of its proper divisors (42481404).

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

22252356 is a wasteful number, since it uses less digits than its factorization.

22252356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 628 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 22252356 is about 4717.2402949182. The cubic root of 22252356 is about 281.2712434324.

Adding to 22252356 its reverse (65325222), we get a palindrome (87577578).

The spelling of 22252356 in words is "twenty-two million, two hundred fifty-two thousand, three hundred fifty-six".