22044900 has 36 divisors (see below), whose sum is σ = 63784112. Its totient is φ = 5878560.

The previous prime is 22044887. The next prime is 22044907. The reversal of 22044900 is 944022.

It is not an unprimeable number, because it can be changed into a prime (22044907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36442 + ... + 37041.

Almost surely, 2^22044900 is an apocalyptic number.

22044900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22044900 is an abundant number, since it is smaller than the sum of its proper divisors (41739212).

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

22044900 is a wasteful number, since it uses less digits than its factorization.

22044900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73500 (or 73493 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 22044900 is about 4695.1996762651. The cubic root of 22044900 is about 280.3944271153.

Adding to 22044900 its reverse (944022), we get a palindrome (22988922).

The spelling of 22044900 in words is "twenty-two million, forty-four thousand, nine hundred".