22238208 has 132 divisors (see below), whose sum is σ = 68124160. Its totient is φ = 6967296.

The previous prime is 22238207. The next prime is 22238231. The reversal of 22238208 is 80283222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22238201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175041 + ... + 175167.

Almost surely, 2^22238208 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 22238208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34062080).

22238208 is an abundant number, since it is smaller than the sum of its proper divisors (45885952).

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

22238208 is a wasteful number, since it uses less digits than its factorization.

22238208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 22238208 is about 4715.7404508730. The cubic root of 22238208 is about 281.2116202444.

The spelling of 22238208 in words is "twenty-two million, two hundred thirty-eight thousand, two hundred eight".