220441650 has 192 divisors, whose sum is σ = 659957760. Its totient is φ = 47980800.

The previous prime is 220441579. The next prime is 220441747. The reversal of 220441650 is 56144022.

It is a self number, because there is not a number n which added to its sum of digits gives 220441650.

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 95 ways as a sum of consecutive naturals, for example, 922231 + ... + 922469.

It is an arithmetic number, because the mean of its divisors is an integer number (3437280).

Almost surely, 2^220441650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220441650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329978880).

220441650 is an abundant number, since it is smaller than the sum of its proper divisors (439516110).

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

220441650 is a wasteful number, since it uses less digits than its factorization.

220441650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 220441650 is about 14847.2775282205. The cubic root of 220441650 is about 604.0847669139.

Adding to 220441650 its reverse (56144022), we get a palindrome (276585672).

The spelling of 220441650 in words is "two hundred twenty million, four hundred forty-one thousand, six hundred fifty".