839169042 has 16 divisors (see below), whose sum is σ = 1678960992. Its totient is φ = 279619200.

The previous prime is 839169031. The next prime is 839169049. The reversal of 839169042 is 240961938.

It is a junction number, because it is equal to n+sod(n) for n = 839168985 and 839169003.

It is not an unprimeable number, because it can be changed into a prime (839169049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7423 + ... + 41634.

It is an arithmetic number, because the mean of its divisors is an integer number (104935062).

Almost surely, 2^839169042 is an apocalyptic number.

839169042 is an abundant number, since it is smaller than the sum of its proper divisors (839791950).

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

839169042 is a wasteful number, since it uses less digits than its factorization.

839169042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51913.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 839169042 is about 28968.4145579284. The cubic root of 839169042 is about 943.2275659891.

The spelling of 839169042 in words is "eight hundred thirty-nine million, one hundred sixty-nine thousand, forty-two".