22530200 has 216 divisors, whose sum is σ = 70503300. Its totient is φ = 6652800.

The previous prime is 22530199. The next prime is 22530203. The reversal of 22530200 is 203522.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22530203) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1185791 + ... + 1185809.

Almost surely, 2^22530200 is an apocalyptic number.

22530200 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 22530200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35251650).

22530200 is an abundant number, since it is smaller than the sum of its proper divisors (47973100).

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

22530200 is a wasteful number, since it uses less digits than its factorization.

22530200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 22530200 is about 4746.5987822861. The cubic root of 22530200 is about 282.4370601423.

Adding to 22530200 its reverse (203522), we get a palindrome (22733722).

The spelling of 22530200 in words is "twenty-two million, five hundred thirty thousand, two hundred".