3181676842 has 16 divisors (see below), whose sum is σ = 4956585480. Its totient is φ = 1530448128.

The previous prime is 3181676809. The next prime is 3181676873. The reversal of 3181676842 is 2486761813.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2362057201 + 819619641 = 48601^2 + 28629^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3181676792 and 3181676801.

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, 234963 + ... + 248134.

Almost surely, 2^3181676842 is an apocalyptic number.

3181676842 is a deficient number, since it is larger than the sum of its proper divisors (1774908638).

3181676842 is a wasteful number, since it uses less digits than its factorization.

3181676842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483225.

The product of its digits is 387072, while the sum is 46.

The square root of 3181676842 is about 56406.3546242797. The cubic root of 3181676842 is about 1470.7945851537.

The spelling of 3181676842 in words is "three billion, one hundred eighty-one million, six hundred seventy-six thousand, eight hundred forty-two".