22136652 has 60 divisors (see below), whose sum is σ = 61288920. Its totient is φ = 6943104.

The previous prime is 22136651. The next prime is 22136663. The reversal of 22136652 is 25663122.

22136652 is a `hidden beast` number, since 2 + 2 + 1 + 3 + 6 + 652 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (22136651) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3499 + ... + 7517.

It is an arithmetic number, because the mean of its divisors is an integer number (1021482).

Almost surely, 2^22136652 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 22136652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30644460).

22136652 is an abundant number, since it is smaller than the sum of its proper divisors (39152268).

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

22136652 is a wasteful number, since it uses less digits than its factorization.

22136652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052 (or 4041 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 22136652 is about 4704.9603611508. The cubic root of 22136652 is about 280.7828939831.

Adding to 22136652 its reverse (25663122), we get a palindrome (47799774).

The spelling of 22136652 in words is "twenty-two million, one hundred thirty-six thousand, six hundred fifty-two".