842824 has 16 divisors (see below), whose sum is σ = 1593900. Its totient is φ = 417792.

The previous prime is 842819. The next prime is 842857. The reversal of 842824 is 428248.

It can be written as a sum of positive squares in 2 ways, for example, as 842724 + 100 = 918^2 + 10^2 .

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 842792 and 842801.

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, 712 + ... + 1480.

2⁸⁴²⁸²⁴ is an apocalyptic number.

It is an amenable number.

842824 is a deficient number, since it is larger than the sum of its proper divisors (751076).

842824 is a wasteful number, since it uses less digits than its factorization.

842824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912 (or 908 counting only the distinct ones).

The product of its digits is 4096, while the sum is 28.

The square root of 842824 is about 918.0544646153. The cubic root of 842824 is about 94.4594975878.

The spelling of 842824 in words is "eight hundred forty-two thousand, eight hundred twenty-four".