4431521044 has 12 divisors (see below), whose sum is σ = 8092342944. Its totient is φ = 2119423064.

The previous prime is 4431521023. The next prime is 4431521051. The reversal of 4431521044 is 4401251344.

It is a congruent number.

It is an unprimeable number.

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, 24084262 + ... + 24084445.

It is an arithmetic number, because the mean of its divisors is an integer number (674361912).

Almost surely, 2^4431521044 is an apocalyptic number.

It is an amenable number.

4431521044 is a deficient number, since it is larger than the sum of its proper divisors (3660821900).

4431521044 is a wasteful number, since it uses less digits than its factorization.

4431521044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48168734 (or 48168732 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 4431521044 is about 66569.6706015585. The cubic root of 4431521044 is about 1642.5462434787.

Adding to 4431521044 its reverse (4401251344), we get a palindrome (8832772388).

The spelling of 4431521044 in words is "four billion, four hundred thirty-one million, five hundred twenty-one thousand, forty-four".