22641136 has 30 divisors (see below), whose sum is σ = 51030960. Its totient is φ = 9703008.

The previous prime is 22641133. The next prime is 22641181. The reversal of 22641136 is 63114622.

It is a self number, because there is not a number n which added to its sum of digits gives 22641136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22641133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13656 + ... + 15223.

It is an arithmetic number, because the mean of its divisors is an integer number (1701032).

Almost surely, 2^22641136 is an apocalyptic number.

It is an amenable number.

22641136 is an abundant number, since it is smaller than the sum of its proper divisors (28389824).

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

22641136 is a wasteful number, since it uses less digits than its factorization.

22641136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28901 (or 28888 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 22641136 is about 4758.2702739546. The cubic root of 22641136 is about 282.8998634344.

Adding to 22641136 its reverse (63114622), we get a palindrome (85755758).

The spelling of 22641136 in words is "twenty-two million, six hundred forty-one thousand, one hundred thirty-six".