22989544 has 16 divisors (see below), whose sum is σ = 45374400. Its totient is φ = 10889712.

The previous prime is 22989541. The next prime is 22989557. The reversal of 22989544 is 44598922.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22989544.

It is not an unprimeable number, because it can be changed into a prime (22989541) 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, 75472 + ... + 75775.

It is an arithmetic number, because the mean of its divisors is an integer number (2835900).

Almost surely, 2^22989544 is an apocalyptic number.

It is an amenable number.

22989544 is a deficient number, since it is larger than the sum of its proper divisors (22384856).

22989544 is a wasteful number, since it uses less digits than its factorization.

22989544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151272 (or 151268 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 22989544 is about 4794.7412860341. The cubic root of 22989544 is about 284.3435965645.

The spelling of 22989544 in words is "twenty-two million, nine hundred eighty-nine thousand, five hundred forty-four".