842405836 has 12 divisors (see below), whose sum is σ = 1474417728. Its totient is φ = 421143632.

The previous prime is 842405827. The next prime is 842405867. The reversal of 842405836 is 638504248.

842405836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 38310 + ... + 56146.

It is an arithmetic number, because the mean of its divisors is an integer number (122868144).

Almost surely, 2^842405836 is an apocalyptic number.

It is an amenable number.

842405836 is a deficient number, since it is larger than the sum of its proper divisors (632011892).

842405836 is a wasteful number, since it uses less digits than its factorization.

842405836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29648 (or 29646 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 842405836 is about 29024.2284307439. The cubic root of 842405836 is about 944.4387309376.

The spelling of 842405836 in words is "eight hundred forty-two million, four hundred five thousand, eight hundred thirty-six".