22109652 has 24 divisors (see below), whose sum is σ = 57321600. Its totient is φ = 7369848.

The previous prime is 22109641. The next prime is 22109653. The reversal of 22109652 is 25690122.

22109652 is a `hidden beast` number, since 2 + 2 + 1 + 0 + 9 + 652 = 666.

It is a super-2 number, since 2×22109652² = 977673423122208, 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 not an unprimeable number, because it can be changed into a prime (22109653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102252 + ... + 102467.

It is an arithmetic number, because the mean of its divisors is an integer number (2388400).

Almost surely, 2^22109652 is an apocalyptic number.

It is an amenable number.

22109652 is an abundant number, since it is smaller than the sum of its proper divisors (35211948).

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

22109652 is a wasteful number, since it uses less digits than its factorization.

22109652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204732 (or 204724 counting only the distinct ones).

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

The square root of 22109652 is about 4702.0901735292. The cubic root of 22109652 is about 280.6686908890.

Adding to 22109652 its reverse (25690122), we get a palindrome (47799774).

The spelling of 22109652 in words is "twenty-two million, one hundred nine thousand, six hundred fifty-two".