4429641872 has 20 divisors (see below), whose sum is σ = 8587942896. Its totient is φ = 2213398560.

The previous prime is 4429641869. The next prime is 4429641877. The reversal of 4429641872 is 2781469244.

It is a super-2 number, since 2×4429641872² = 39243454228351328768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4429641877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62978 + ... + 113249.

Almost surely, 2^4429641872 is an apocalyptic number.

It is an amenable number.

4429641872 is a deficient number, since it is larger than the sum of its proper divisors (4158301024).

4429641872 is a wasteful number, since it uses less digits than its factorization.

4429641872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177806 (or 177800 counting only the distinct ones).

The product of its digits is 774144, while the sum is 47.

The square root of 4429641872 is about 66555.5547794472. The cubic root of 4429641872 is about 1642.3140385335.

It can be divided in two parts, 44296 and 41872, that added together give a palindrome (86168).

The spelling of 4429641872 in words is "four billion, four hundred twenty-nine million, six hundred forty-one thousand, eight hundred seventy-two".