842008 has 8 divisors (see below), whose sum is σ = 1578780. Its totient is φ = 421000.

The previous prime is 842003. The next prime is 842021. The reversal of 842008 is 800248.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 842008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842003) by changing a digit.

842008 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52618 + ... + 52633.

2⁸⁴²⁰⁰⁸ is an apocalyptic number.

It is an amenable number.

842008 is a deficient number, since it is larger than the sum of its proper divisors (736772).

842008 is a wasteful number, since it uses less digits than its factorization.

842008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105257 (or 105253 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 842008 is about 917.6099389174. The cubic root of 842008 is about 94.4290033451.

The spelling of 842008 in words is "eight hundred forty-two thousand, eight".