2439312345 has 24 divisors (see below), whose sum is σ = 4364535552. Its totient is φ = 1258999200.

The previous prime is 2439312341. The next prime is 2439312367. The reversal of 2439312345 is 5432139342.

It is not a de Polignac number, because 2439312345 - 2² = 2439312341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2439312341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 872911 + ... + 875700.

It is an arithmetic number, because the mean of its divisors is an integer number (181855648).

Almost surely, 2^2439312345 is an apocalyptic number.

It is an amenable number.

2439312345 is a deficient number, since it is larger than the sum of its proper divisors (1925223207).

2439312345 is a wasteful number, since it uses less digits than its factorization.

2439312345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748653 (or 1748650 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 2439312345 is about 49389.3950661476. The cubic root of 2439312345 is about 1346.1366170031.

The spelling of 2439312345 in words is "two billion, four hundred thirty-nine million, three hundred twelve thousand, three hundred forty-five".