3139239844 has 12 divisors (see below), whose sum is σ = 5916259804. Its totient is φ = 1448879904.

The previous prime is 3139239823. The next prime is 3139239863. The reversal of 3139239844 is 4489329313.

It can be written as a sum of positive squares in 2 ways, for example, as 550465444 + 2588774400 = 23462^2 + 50880^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3139239794 and 3139239803.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30184947 + ... + 30185050.

Almost surely, 2^3139239844 is an apocalyptic number.

It is an amenable number.

3139239844 is a deficient number, since it is larger than the sum of its proper divisors (2777019960).

3139239844 is a wasteful number, since it uses less digits than its factorization.

3139239844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60370014 (or 60370012 counting only the distinct ones).

The product of its digits is 559872, while the sum is 46.

The square root of 3139239844 is about 56028.9197111634. The cubic root of 3139239844 is about 1464.2261742843.

The spelling of 3139239844 in words is "three billion, one hundred thirty-nine million, two hundred thirty-nine thousand, eight hundred forty-four".