4438220113 has 4 divisors (see below), whose sum is σ = 4443706980. Its totient is φ = 4432733248.

The previous prime is 4438220063. The next prime is 4438220147. The reversal of 4438220113 is 3110228344.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4246868224 + 191351889 = 65168^2 + 13833^2 .

It is a cyclic number.

It is not a de Polignac number, because 4438220113 - 2⁹ = 4438219601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4438220713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2742220 + ... + 2743837.

It is an arithmetic number, because the mean of its divisors is an integer number (1110926745).

Almost surely, 2^4438220113 is an apocalyptic number.

It is an amenable number.

4438220113 is a deficient number, since it is larger than the sum of its proper divisors (5486867).

4438220113 is an equidigital number, since it uses as much as digits as its factorization.

4438220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486866.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 4438220113 is about 66619.9678249697. The cubic root of 4438220113 is about 1643.3734982396.

Adding to 4438220113 its reverse (3110228344), we get a palindrome (7548448457).

The spelling of 4438220113 in words is "four billion, four hundred thirty-eight million, two hundred twenty thousand, one hundred thirteen".