2871839444 has 24 divisors (see below), whose sum is σ = 5352130728. Its totient is φ = 1343636480.

The previous prime is 2871839431. The next prime is 2871839479. The reversal of 2871839444 is 4449381782.

It is a happy number.

2871839444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1746236944 + 1125602500 = 41788^2 + 33550^2 .

It is a super-2 number, since 2×2871839444² = 16494923584228458272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2871839392 and 2871839401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110297 + ... + 133824.

It is an arithmetic number, because the mean of its divisors is an integer number (223005447).

Almost surely, 2^2871839444 is an apocalyptic number.

It is an amenable number.

2871839444 is a deficient number, since it is larger than the sum of its proper divisors (2480291284).

2871839444 is a wasteful number, since it uses less digits than its factorization.

2871839444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244315 (or 244313 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 50.

The square root of 2871839444 is about 53589.5460327852. The cubic root of 2871839444 is about 1421.4122437515.

The spelling of 2871839444 in words is "two billion, eight hundred seventy-one million, eight hundred thirty-nine thousand, four hundred forty-four".