22052900 has 18 divisors (see below), whose sum is σ = 47855010. Its totient is φ = 8821120.

The previous prime is 22052897. The next prime is 22052909. The reversal of 22052900 is 925022.

It can be written as a sum of positive squares in 3 ways, for example, as 484 + 22052416 = 22^2 + 4696^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22052909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110165 + ... + 110364.

Almost surely, 2^22052900 is an apocalyptic number.

22052900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22052900 is an abundant number, since it is smaller than the sum of its proper divisors (25802110).

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

22052900 is a wasteful number, since it uses less digits than its factorization.

22052900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220543 (or 220536 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 22052900 is about 4696.0515329370. The cubic root of 22052900 is about 280.4283409930.

Adding to 22052900 its reverse (925022), we get a palindrome (22977922).

The spelling of 22052900 in words is "twenty-two million, fifty-two thousand, nine hundred".