22285800 has 96 divisors (see below), whose sum is σ = 76780800. Its totient is φ = 5941440.

The previous prime is 22285799. The next prime is 22285817. The reversal of 22285800 is 858222.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 23 ways as a sum of consecutive naturals, for example, 3337 + ... + 7463.

It is an arithmetic number, because the mean of its divisors is an integer number (799800).

Almost surely, 2^22285800 is an apocalyptic number.

22285800 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 22285800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38390400).

22285800 is an abundant number, since it is smaller than the sum of its proper divisors (54495000).

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

22285800 is a wasteful number, since it uses less digits than its factorization.

22285800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4152 (or 4137 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 22285800 is about 4720.7838332209. The cubic root of 22285800 is about 281.4120843506.

The spelling of 22285800 in words is "twenty-two million, two hundred eighty-five thousand, eight hundred".