22890784 has 24 divisors (see below), whose sum is σ = 51504768. Its totient is φ = 9810240.

The previous prime is 22890781. The next prime is 22890793. The reversal of 22890784 is 48709822.

It is not an unprimeable number, because it can be changed into a prime (22890781) 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, 50872 + ... + 51319.

It is an arithmetic number, because the mean of its divisors is an integer number (2146032).

Almost surely, 2^22890784 is an apocalyptic number.

It is an amenable number.

22890784 is an abundant number, since it is smaller than the sum of its proper divisors (28613984).

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

22890784 is a wasteful number, since it uses less digits than its factorization.

22890784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102208 (or 102200 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 22890784 is about 4784.4314186745. The cubic root of 22890784 is about 283.9358447957.

The spelling of 22890784 in words is "twenty-two million, eight hundred ninety thousand, seven hundred eighty-four".