220444422 has 64 divisors (see below), whose sum is σ = 508723200. Its totient is φ = 62981280.

The previous prime is 220444417. The next prime is 220444453. The reversal of 220444422 is 224444022.

220444422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220444392 and 220444401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 459979 + ... + 460457.

It is an arithmetic number, because the mean of its divisors is an integer number (7948800).

Almost surely, 2^220444422 is an apocalyptic number.

220444422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 220444422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254361600).

220444422 is an abundant number, since it is smaller than the sum of its proper divisors (288278778).

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

220444422 is a wasteful number, since it uses less digits than its factorization.

220444422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881.

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 220444422 is about 14847.3708783744. The cubic root of 220444422 is about 604.0872989762.

Adding to 220444422 its reverse (224444022), we get a palindrome (444888444).

The spelling of 220444422 in words is "two hundred twenty million, four hundred forty-four thousand, four hundred twenty-two".