4431344144 has 10 divisors (see below), whose sum is σ = 8585729310. Its totient is φ = 2215672064.

The previous prime is 4431344131. The next prime is 4431344147. The reversal of 4431344144 is 4414431344.

It can be written as a sum of positive squares in only one way, i.e., 3873817600 + 557526544 = 62240^2 + 23612^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4431344144.

It is not an unprimeable number, because it can be changed into a prime (4431344147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138479489 + ... + 138479520.

It is an arithmetic number, because the mean of its divisors is an integer number (858572931).

Almost surely, 2^4431344144 is an apocalyptic number.

It is an amenable number.

4431344144 is a deficient number, since it is larger than the sum of its proper divisors (4154385166).

4431344144 is a wasteful number, since it uses less digits than its factorization.

4431344144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276959017 (or 276959011 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

The square root of 4431344144 is about 66568.3419051429. The cubic root of 4431344144 is about 1642.5243871534.

Adding to 4431344144 its reverse (4414431344), we get a palindrome (8845775488).

The spelling of 4431344144 in words is "four billion, four hundred thirty-one million, three hundred forty-four thousand, one hundred forty-four".