4440444242 has 12 divisors (see below), whose sum is σ = 7212438090. Its totient is φ = 2049435648.

The previous prime is 4440444199. The next prime is 4440444257. The reversal of 4440444242 is 2424440444.

It can be written as a sum of positive squares in 3 ways, for example, as 3183103561 + 1257340681 = 56419^2 + 35459^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4440444199 and 4440444208.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6568367 + ... + 6569042.

Almost surely, 2^4440444242 is an apocalyptic number.

4440444242 is a deficient number, since it is larger than the sum of its proper divisors (2771993848).

4440444242 is a wasteful number, since it uses less digits than its factorization.

4440444242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13137437 (or 13137424 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

The square root of 4440444242 is about 66636.6583946104. The cubic root of 4440444242 is about 1643.6479674468.

Adding to 4440444242 its reverse (2424440444), we get a palindrome (6864884686).

The spelling of 4440444242 in words is "four billion, four hundred forty million, four hundred forty-four thousand, two hundred forty-two".