4439340321 has 32 divisors (see below), whose sum is σ = 6435327360. Its totient is φ = 2705923584.

The previous prime is 4439340319. The next prime is 4439340341. The reversal of 4439340321 is 1230439344.

It is not a de Polignac number, because 4439340321 - 2¹ = 4439340319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4439340341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2319661 + ... + 2321573.

It is an arithmetic number, because the mean of its divisors is an integer number (201103980).

Almost surely, 2^4439340321 is an apocalyptic number.

It is an amenable number.

4439340321 is a deficient number, since it is larger than the sum of its proper divisors (1995987039).

4439340321 is a wasteful number, since it uses less digits than its factorization.

4439340321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 4439340321 is about 66628.3747437982. The cubic root of 4439340321 is about 1643.5117492525.

Adding to 4439340321 its reverse (1230439344), we get a palindrome (5669779665).

The spelling of 4439340321 in words is "four billion, four hundred thirty-nine million, three hundred forty thousand, three hundred twenty-one".