220443232 has 48 divisors (see below), whose sum is σ = 449971200. Its totient is φ = 106197120.

The previous prime is 220443227. The next prime is 220443257. The reversal of 220443232 is 232344022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355819 + ... + 356437.

It is an arithmetic number, because the mean of its divisors is an integer number (9374400).

Almost surely, 2^220443232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220443232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224985600).

220443232 is an abundant number, since it is smaller than the sum of its proper divisors (229527968).

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

220443232 is a wasteful number, since it uses less digits than its factorization.

220443232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 220443232 is about 14847.3308038853. The cubic root of 220443232 is about 604.0862119823.

Adding to 220443232 its reverse (232344022), we get a palindrome (452787254).

The spelling of 220443232 in words is "two hundred twenty million, four hundred forty-three thousand, two hundred thirty-two".