22425900 has 144 divisors (see below), whose sum is σ = 75828480. Its totient is φ = 5011200.

The previous prime is 22425877. The next prime is 22425901. The reversal of 22425900 is 952422.

It is not an unprimeable number, because it can be changed into a prime (22425901) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 123810 + ... + 123990.

Almost surely, 2^22425900 is an apocalyptic number.

22425900 is a gapful number since it is divisible by the number (20) 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 22425900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37914240).

22425900 is an abundant number, since it is smaller than the sum of its proper divisors (53402580).

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

22425900 is a wasteful number, since it uses less digits than its factorization.

22425900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 22425900 is about 4735.5992229073. The cubic root of 22425900 is about 282.0005532910. Note that the first 3 decimals are identical.

The spelling of 22425900 in words is "twenty-two million, four hundred twenty-five thousand, nine hundred".