4431020444 has 12 divisors (see below), whose sum is σ = 7761799584. Its totient is φ = 2213363424.

The previous prime is 4431020417. The next prime is 4431020453. The reversal of 4431020444 is 4440201344.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532052 + ... + 540315.

It is an arithmetic number, because the mean of its divisors is an integer number (646816632).

Almost surely, 2^4431020444 is an apocalyptic number.

It is an amenable number.

4431020444 is a deficient number, since it is larger than the sum of its proper divisors (3330779140).

4431020444 is a wasteful number, since it uses less digits than its factorization.

4431020444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073404 (or 1073402 counting only the distinct ones).

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

The square root of 4431020444 is about 66565.9105248325. The cubic root of 4431020444 is about 1642.4843919079.

Adding to 4431020444 its reverse (4440201344), we get a palindrome (8871221788).

Subtracting 4431020444 from its reverse (4440201344), we obtain a square (9180900 = 3030²).

The spelling of 4431020444 in words is "four billion, four hundred thirty-one million, twenty thousand, four hundred forty-four".