2439307321 has 4 divisors (see below), whose sum is σ = 2661062544. Its totient is φ = 2217552100.

The previous prime is 2439307309. The next prime is 2439307327. The reversal of 2439307321 is 1237039342.

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 cyclic number.

It is not a de Polignac number, because 2439307321 - 2⁷ = 2439307193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2439307327) 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, 110877595 + ... + 110877616.

It is an arithmetic number, because the mean of its divisors is an integer number (665265636).

Almost surely, 2^2439307321 is an apocalyptic number.

It is an amenable number.

2439307321 is a deficient number, since it is larger than the sum of its proper divisors (221755223).

2439307321 is a wasteful number, since it uses less digits than its factorization.

2439307321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221755222.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 2439307321 is about 49389.3442050003. The cubic root of 2439307321 is about 1346.1356928363.

The spelling of 2439307321 in words is "two billion, four hundred thirty-nine million, three hundred seven thousand, three hundred twenty-one".