22084900 has 36 divisors (see below), whose sum is σ = 48160980. Its totient is φ = 8790400.

The previous prime is 22084873. The next prime is 22084901. The reversal of 22084900 is 948022.

It can be written as a sum of positive squares in 6 ways, for example, as 5503716 + 16581184 = 2346^2 + 4072^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22084901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26490 + ... + 27310.

It is an arithmetic number, because the mean of its divisors is an integer number (1337805).

Almost surely, 2^22084900 is an apocalyptic number.

22084900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22084900 is an abundant number, since it is smaller than the sum of its proper divisors (26076080).

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

22084900 is a wasteful number, since it uses less digits than its factorization.

22084900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 22084900 is about 4699.4574154896. The cubic root of 22084900 is about 280.5639145451.

The spelling of 22084900 in words is "twenty-two million, eighty-four thousand, nine hundred".