22609152 has 72 divisors (see below), whose sum is σ = 66879680. Its totient is φ = 7534080.

The previous prime is 22609141. The next prime is 22609189. The reversal of 22609152 is 25190622.

22609152 is a `hidden beast` number, since 2 + 2 + 609 + 1 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×22609152² = 1022347508318208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5277 + ... + 8547.

Almost surely, 2^22609152 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 22609152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33439840).

22609152 is an abundant number, since it is smaller than the sum of its proper divisors (44270528).

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

22609152 is an equidigital number, since it uses as much as digits as its factorization.

22609152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296 (or 3276 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 22609152 is about 4754.9082010066. The cubic root of 22609152 is about 282.7665878300.

Adding to 22609152 its reverse (25190622), we get a palindrome (47799774).

The spelling of 22609152 in words is "twenty-two million, six hundred nine thousand, one hundred fifty-two".