22530600 has 72 divisors (see below), whose sum is σ = 75671310. Its totient is φ = 6007680.

The previous prime is 22530589. The next prime is 22530601. The reversal of 22530600 is 603522.

It can be written as a sum of positive squares in 3 ways, for example, as 20958084 + 1572516 = 4578^2 + 1254^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (22530601) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4459 + ... + 8058.

Almost surely, 2^22530600 is an apocalyptic number.

22530600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22530600 is an abundant number, since it is smaller than the sum of its proper divisors (53140710).

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

22530600 is a wasteful number, since it uses less digits than its factorization.

22530600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12539 (or 12527 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 22530600 is about 4746.6409175332. The cubic root of 22530600 is about 282.4387315900.

The spelling of 22530600 in words is "twenty-two million, five hundred thirty thousand, six hundred".