22543200 has 216 divisors, whose sum is σ = 82869696. Its totient is φ = 5760000.

The previous prime is 22543181. The next prime is 22543219. The reversal of 22543200 is 234522.

It is an interprime number because it is at equal distance from previous prime (22543181) and next prime (22543219).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 223150 + ... + 223250.

It is an arithmetic number, because the mean of its divisors is an integer number (383656).

Almost surely, 2^22543200 is an apocalyptic number.

22543200 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 22543200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41434848).

22543200 is an abundant number, since it is smaller than the sum of its proper divisors (60326496).

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

22543200 is a wasteful number, since it uses less digits than its factorization.

22543200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22543200 is about 4747.9679864127. The cubic root of 22543200 is about 282.4913720705.

Adding to 22543200 its reverse (234522), we get a palindrome (22777722).

The spelling of 22543200 in words is "twenty-two million, five hundred forty-three thousand, two hundred".