22495518 has 48 divisors (see below), whose sum is σ = 51682176. Its totient is φ = 7056720.

The previous prime is 22495513. The next prime is 22495531. The reversal of 22495518 is 81559422.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22495513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27333 + ... + 28143.

It is an arithmetic number, because the mean of its divisors is an integer number (1076712).

Almost surely, 2^22495518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22495518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25841088).

22495518 is an abundant number, since it is smaller than the sum of its proper divisors (29186658).

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

22495518 is a wasteful number, since it uses less digits than its factorization.

22495518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909 (or 906 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 22495518 is about 4742.9440224401. The cubic root of 22495518 is about 282.2920619818.

The spelling of 22495518 in words is "twenty-two million, four hundred ninety-five thousand, five hundred eighteen".