22620100 has 18 divisors (see below), whose sum is σ = 49085834. Its totient is φ = 9048000.

The previous prime is 22620083. The next prime is 22620119. The reversal of 22620100 is 102622.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7064964 + 15555136 = 2658^2 + 3944^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113001 + ... + 113200.

Almost surely, 2^22620100 is an apocalyptic number.

22620100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22620100 is an abundant number, since it is smaller than the sum of its proper divisors (26465734).

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

22620100 is a wasteful number, since it uses less digits than its factorization.

22620100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226215 (or 226208 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22620100 is about 4756.0592931544. The cubic root of 22620100 is about 282.8122216963.

Adding to 22620100 its reverse (102622), we get a palindrome (22722722).

The spelling of 22620100 in words is "twenty-two million, six hundred twenty thousand, one hundred".