22459136 has 72 divisors (see below), whose sum is σ = 52195584. Its totient is φ = 9446400.

The previous prime is 22459127. The next prime is 22459139. The reversal of 22459136 is 63195422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22459139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148661 + ... + 148811.

Almost surely, 2^22459136 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 22459136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26097792).

22459136 is an abundant number, since it is smaller than the sum of its proper divisors (29736448).

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

22459136 is an equidigital number, since it uses as much as digits as its factorization.

22459136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 243 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 22459136 is about 4739.1070888934. The cubic root of 22459136 is about 282.1397962204.

The spelling of 22459136 in words is "twenty-two million, four hundred fifty-nine thousand, one hundred thirty-six".