22989816 has 48 divisors (see below), whose sum is σ = 62548200. Its totient is φ = 7628352.

The previous prime is 22989781. The next prime is 22989847. The reversal of 22989816 is 61898922.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18775 + ... + 19961.

Almost surely, 2^22989816 is an apocalyptic number.

It is an amenable number.

22989816 is an abundant number, since it is smaller than the sum of its proper divisors (39558384).

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

22989816 is a wasteful number, since it uses less digits than its factorization.

22989816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468 (or 1461 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 22989816 is about 4794.7696503586. The cubic root of 22989816 is about 284.3447179605.

The spelling of 22989816 in words is "twenty-two million, nine hundred eighty-nine thousand, eight hundred sixteen".