22909224 has 64 divisors (see below), whose sum is σ = 62375040. Its totient is φ = 6969600.

The previous prime is 22909213. The next prime is 22909247. The reversal of 22909224 is 42290922.

It is a junction number, because it is equal to n+sod(n) for n = 22909191 and 22909200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31149 + ... + 31875.

It is an arithmetic number, because the mean of its divisors is an integer number (974610).

Almost surely, 2^22909224 is an apocalyptic number.

22909224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22909224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31187520).

22909224 is an abundant number, since it is smaller than the sum of its proper divisors (39465816).

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

22909224 is a wasteful number, since it uses less digits than its factorization.

22909224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 22909224 is about 4786.3581144749. The cubic root of 22909224 is about 284.0120671987.

The spelling of 22909224 in words is "twenty-two million, nine hundred nine thousand, two hundred twenty-four".