4243220444 has 18 divisors (see below), whose sum is σ = 7480365480. Its totient is φ = 2106086752.

The previous prime is 4243220441. The next prime is 4243220491. The reversal of 4243220444 is 4440223424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243220441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46817 + ... + 103335.

It is an arithmetic number, because the mean of its divisors is an integer number (415575860).

Almost surely, 2^4243220444 is an apocalyptic number.

It is an amenable number.

4243220444 is a deficient number, since it is larger than the sum of its proper divisors (3237145036).

4243220444 is a wasteful number, since it uses less digits than its factorization.

4243220444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56797 (or 56658 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

The square root of 4243220444 is about 65140.0064783540. The cubic root of 4243220444 is about 1618.9441430529.

Adding to 4243220444 its reverse (4440223424), we get a palindrome (8683443868).

The spelling of 4243220444 in words is "four billion, two hundred forty-three million, two hundred twenty thousand, four hundred forty-four".