22145484 has 12 divisors (see below), whose sum is σ = 51672824. Its totient is φ = 7381824.

The previous prime is 22145477. The next prime is 22145503. The reversal of 22145484 is 48454122.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922717 + ... + 922740.

Almost surely, 2^22145484 is an apocalyptic number.

It is an amenable number.

22145484 is an abundant number, since it is smaller than the sum of its proper divisors (29527340).

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

22145484 is a wasteful number, since it uses less digits than its factorization.

22145484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845464 (or 1845462 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

The square root of 22145484 is about 4705.8988514417. The cubic root of 22145484 is about 280.8202309269.

The spelling of 22145484 in words is "twenty-two million, one hundred forty-five thousand, four hundred eighty-four".