858342 has 16 divisors (see below), whose sum is σ = 1776240. Its totient is φ = 276192.

The previous prime is 858317. The next prime is 858373. The reversal of 858342 is 243858.

858342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

858342 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 in 7 ways as a sum of consecutive naturals, for example, 2293 + ... + 2640.

It is an arithmetic number, because the mean of its divisors is an integer number (111015).

2⁸⁵⁸³⁴² is an apocalyptic number.

858342 is an abundant number, since it is smaller than the sum of its proper divisors (917898).

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

858342 is a wasteful number, since it uses less digits than its factorization.

858342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4967.

The product of its digits is 7680, while the sum is 30.

The square root of 858342 is about 926.4674845886. The cubic root of 858342 is about 95.0357021858.

The spelling of 858342 in words is "eight hundred fifty-eight thousand, three hundred forty-two".