22494888 has 64 divisors (see below), whose sum is σ = 67300800. Its totient is φ = 6920640.

The previous prime is 22494887. The next prime is 22494889. The reversal of 22494888 is 88849422.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22494887) and next prime (22494889).

It is a super-2 number, since 2×22494888² = 1012039972265088, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22494881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1198 + ... + 6813.

It is an arithmetic number, because the mean of its divisors is an integer number (1051575).

Almost surely, 2^22494888 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 22494888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33650400).

22494888 is an abundant number, since it is smaller than the sum of its proper divisors (44805912).

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

22494888 is a wasteful number, since it uses less digits than its factorization.

22494888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039 (or 8029 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 22494888 is about 4742.8776075290. The cubic root of 22494888 is about 282.2894267063.

The spelling of 22494888 in words is "twenty-two million, four hundred ninety-four thousand, eight hundred eighty-eight".