22237888 has 28 divisors (see below), whose sum is σ = 45325792. Its totient is φ = 10817280.

The previous prime is 22237883. The next prime is 22237889. The reversal of 22237888 is 88873222.

It is a happy number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 22237888.

It is not an unprimeable number, because it can be changed into a prime (22237883) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2328 + ... + 7063.

Almost surely, 2^22237888 is an apocalyptic number.

It is an amenable number.

22237888 is an abundant number, since it is smaller than the sum of its proper divisors (23087904).

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

22237888 is an equidigital number, since it uses as much as digits as its factorization.

22237888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9440 (or 9430 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 22237888 is about 4715.7065218268. The cubic root of 22237888 is about 281.2102713924.

The spelling of 22237888 in words is "twenty-two million, two hundred thirty-seven thousand, eight hundred eighty-eight".