3139946868 has 24 divisors (see below), whose sum is σ = 7393761760. Its totient is φ = 1037046240.

The previous prime is 3139946851. The next prime is 3139946921. The reversal of 3139946868 is 8686499313.

It is a happy number.

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, 1198978 + ... + 1201593.

Almost surely, 2^3139946868 is an apocalyptic number.

It is an amenable number.

3139946868 is an abundant number, since it is smaller than the sum of its proper divisors (4253814892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3139946868 is a wasteful number, since it uses less digits than its factorization.

3139946868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400687 (or 2400685 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 57.

The square root of 3139946868 is about 56035.2288118823. The cubic root of 3139946868 is about 1464.3360910570.

The spelling of 3139946868 in words is "three billion, one hundred thirty-nine million, nine hundred forty-six thousand, eight hundred sixty-eight".