842682842 has 4 divisors (see below), whose sum is σ = 1264024266. Its totient is φ = 421341420.

The previous prime is 842682839. The next prime is 842682847. The reversal of 842682842 is 248286248.

842682842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 29029²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 842682841 + 1 = 29029^2 + 1^2 .

It is a super-2 number, since 2×842682842² = 1420228744402393928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 842682793 and 842682802.

It is not an unprimeable number, because it can be changed into a prime (842682847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210670709 + ... + 210670712.

Almost surely, 2^842682842 is an apocalyptic number.

842682842 is a deficient number, since it is larger than the sum of its proper divisors (421341424).

842682842 is a wasteful number, since it uses less digits than its factorization.

842682842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421341423.

The product of its digits is 393216, while the sum is 44.

The square root of 842682842 is about 29029.0000172242. Note that the first 4 decimals coincide. The cubic root of 842682842 is about 944.5422386587.

The spelling of 842682842 in words is "eight hundred forty-two million, six hundred eighty-two thousand, eight hundred forty-two".