4439863445 has 8 divisors (see below), whose sum is σ = 5361772344. Its totient is φ = 3529266624.

The previous prime is 4439863427. The next prime is 4439863469. The reversal of 4439863445 is 5443689344.

It can be written as a sum of positive squares in 4 ways, for example, as 403929604 + 4035933841 = 20098^2 + 63529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4439863445 - 2¹⁶ = 4439797909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4439863393 and 4439863402.

It is a congruent number.

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, 2827154 + ... + 2828723.

It is an arithmetic number, because the mean of its divisors is an integer number (670221543).

Almost surely, 2^4439863445 is an apocalyptic number.

It is an amenable number.

4439863445 is a deficient number, since it is larger than the sum of its proper divisors (921908899).

4439863445 is a wasteful number, since it uses less digits than its factorization.

4439863445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5656039.

The product of its digits is 4976640, while the sum is 50.

The square root of 4439863445 is about 66632.3003129863. The cubic root of 4439863445 is about 1643.5763028880.

The spelling of 4439863445 in words is "four billion, four hundred thirty-nine million, eight hundred sixty-three thousand, four hundred forty-five".