220089090 has 64 divisors (see below), whose sum is σ = 570729600. Its totient is φ = 53996544.

The previous prime is 220089073. The next prime is 220089097. The reversal of 220089090 is 90980022.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220089097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147066 + ... + 148554.

It is an arithmetic number, because the mean of its divisors is an integer number (8917650).

Almost surely, 2^220089090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220089090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285364800).

220089090 is an abundant number, since it is smaller than the sum of its proper divisors (350640510).

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

220089090 is a wasteful number, since it uses less digits than its factorization.

220089090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 220089090 is about 14835.3998934980. The cubic root of 220089090 is about 603.7625504809.

The spelling of 220089090 in words is "two hundred twenty million, eighty-nine thousand, ninety".