4431220442 has 64 divisors (see below), whose sum is σ = 7942717440. Its totient is φ = 1831315200.

The previous prime is 4431220441. The next prime is 4431220513. The reversal of 4431220442 is 2440221344.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4431220441) 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, 1387067 + ... + 1390257.

It is an arithmetic number, because the mean of its divisors is an integer number (124104960).

Almost surely, 2^4431220442 is an apocalyptic number.

4431220442 is a deficient number, since it is larger than the sum of its proper divisors (3511496998).

4431220442 is a wasteful number, since it uses less digits than its factorization.

4431220442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 4431220442 is about 66567.4127633033. The cubic root of 4431220442 is about 1642.5091031947.

Adding to 4431220442 its reverse (2440221344), we get a palindrome (6871441786).

The spelling of 4431220442 in words is "four billion, four hundred thirty-one million, two hundred twenty thousand, four hundred forty-two".