4438464321 has 4 divisors (see below), whose sum is σ = 5917952432. Its totient is φ = 2958976212.

The previous prime is 4438464281. The next prime is 4438464323. The reversal of 4438464321 is 1234648344.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-4438464321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4438464321.

It is not an unprimeable number, because it can be changed into a prime (4438464323) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 739744051 + ... + 739744056.

It is an arithmetic number, because the mean of its divisors is an integer number (1479488108).

Almost surely, 2^4438464321 is an apocalyptic number.

It is an amenable number.

4438464321 is a deficient number, since it is larger than the sum of its proper divisors (1479488111).

4438464321 is a wasteful number, since it uses less digits than its factorization.

4438464321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479488110.

The product of its digits is 221184, while the sum is 39.

The square root of 4438464321 is about 66621.8006436332. The cubic root of 4438464321 is about 1643.4036392709.

The spelling of 4438464321 in words is "four billion, four hundred thirty-eight million, four hundred sixty-four thousand, three hundred twenty-one".