22494208 has 44 divisors (see below), whose sum is σ = 49078872. Its totient is φ = 10219520.

The previous prime is 22494193. The next prime is 22494209. The reversal of 22494208 is 80249422.

It is a tau number, because it is divible by the number of its divisors (44).

It is a self number, because there is not a number n which added to its sum of digits gives 22494208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22494209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10266 + ... + 12262.

Almost surely, 2^22494208 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 22494208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24539436).

22494208 is an abundant number, since it is smaller than the sum of its proper divisors (26584664).

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

22494208 is a wasteful number, since it uses less digits than its factorization.

22494208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028 (or 2010 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 22494208 is about 4742.8059205496. The cubic root of 22494208 is about 282.2865822268.

The spelling of 22494208 in words is "twenty-two million, four hundred ninety-four thousand, two hundred eight".