22029090084 has 81 divisors (see below), whose sum is σ = 57738705843. Its totient is φ = 7081510464.

The previous prime is 22029090047. The next prime is 22029090091. The reversal of 22029090084 is 48009092022.

The square root of 22029090084 is 148422.

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

It can be written as a sum of positive squares in 4 ways, for example, as 5406660900 + 16622429184 = 73530^2 + 128928^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 25825002 + ... + 25825854.

Almost surely, 2^22029090084 is an apocalyptic number.

22029090084 is the 148422-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22029090084

22029090084 is an abundant number, since it is smaller than the sum of its proper divisors (35709615759).

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

22029090084 is an equidigital number, since it uses as much as digits as its factorization.

22029090084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

Multiplying 22029090084 by its sum of digits (36), we get a square (793047243024 = 890532²).

22029090084 divided by its sum of digits (36) gives a square (611919169 = 24737²).

Multiplying 22029090084 by its product of nonzero digits (20736), we get a square (456795211981824 = 21372768²).

The spelling of 22029090084 in words is "twenty-two billion, twenty-nine million, ninety thousand, eighty-four".