838842 has 16 divisors (see below), whose sum is σ = 1687392. Its totient is φ = 278000.

The previous prime is 838837. The next prime is 838853. The reversal of 838842 is 248838.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228 + ... + 1784.

It is an arithmetic number, because the mean of its divisors is an integer number (105462).

2⁸³⁸⁸⁴² is an apocalyptic number.

838842 is an abundant number, since it is smaller than the sum of its proper divisors (848550).

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

838842 is a wasteful number, since it uses less digits than its factorization.

838842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its digits is 12288, while the sum is 33.

The square root of 838842 is about 915.8831803238. The cubic root of 838842 is about 94.3105018129.

The spelling of 838842 in words is "eight hundred thirty-eight thousand, eight hundred forty-two".