4404440642 has 16 divisors (see below), whose sum is σ = 7563569280. Its totient is φ = 1884342528.

The previous prime is 4404440629. The next prime is 4404440653. The reversal of 4404440642 is 2460444044.

It is a junction number, because it is equal to n+sod(n) for n = 4404440599 and 4404440608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264542 + ... + 280697.

It is an arithmetic number, because the mean of its divisors is an integer number (472723080).

Almost surely, 2^4404440642 is an apocalyptic number.

4404440642 is a deficient number, since it is larger than the sum of its proper divisors (3159128638).

4404440642 is a wasteful number, since it uses less digits than its factorization.

4404440642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545825.

The product of its (nonzero) digits is 49152, while the sum is 32.

The square root of 4404440642 is about 66365.9599644275. The cubic root of 4404440642 is about 1639.1936153162.

Adding to 4404440642 its reverse (2460444044), we get a palindrome (6864884686).

The spelling of 4404440642 in words is "four billion, four hundred four million, four hundred forty thousand, six hundred forty-two".