842171912 has 16 divisors (see below), whose sum is σ = 1579659840. Its totient is φ = 420929296.

The previous prime is 842171881. The next prime is 842171923. The reversal of 842171912 is 219171248.

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, 5093 + ... + 41355.

It is an arithmetic number, because the mean of its divisors is an integer number (98728740).

Almost surely, 2^842171912 is an apocalyptic number.

It is an amenable number.

842171912 is a deficient number, since it is larger than the sum of its proper divisors (737487928).

842171912 is a wasteful number, since it uses less digits than its factorization.

842171912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39172 (or 39168 counting only the distinct ones).

The product of its digits is 8064, while the sum is 35.

The square root of 842171912 is about 29020.1983452905. The cubic root of 842171912 is about 944.3513038216.

The spelling of 842171912 in words is "eight hundred forty-two million, one hundred seventy-one thousand, nine hundred twelve".