22443036100 has 81 divisors (see below), whose sum is σ = 49632202893. Its totient is φ = 8808828000.

The previous prime is 22443036089. The next prime is 22443036101. The reversal of 22443036100 is 163034422.

The square root of 22443036100 is 149810.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8079492996 + 14363543104 = 89886^2 + 119848^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22443036101) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 106364995 + ... + 106365205.

Almost surely, 2^22443036100 is an apocalyptic number.

22443036100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

22443036100 is the 149810-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22443036100

22443036100 is an abundant number, since it is smaller than the sum of its proper divisors (27189166793).

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

22443036100 is an equidigital number, since it uses as much as digits as its factorization.

22443036100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Multiplying 22443036100 by its sum of digits (25), we get a square (561075902500 = 749050²).

22443036100 divided by its sum of digits (25) gives a square (897721444 = 29962²).

The spelling of 22443036100 in words is "twenty-two billion, four hundred forty-three million, thirty-six thousand, one hundred".