858242 has 16 divisors (see below), whose sum is σ = 1605312. Its totient is φ = 334320.

The previous prime is 858241. The next prime is 858251. The reversal of 858242 is 242858.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2633 + ... + 2940.

It is an arithmetic number, because the mean of its divisors is an integer number (100332).

2⁸⁵⁸²⁴² is an apocalyptic number.

858242 is a deficient number, since it is larger than the sum of its proper divisors (747070).

858242 is a wasteful number, since it uses less digits than its factorization.

858242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5593.

The product of its digits is 5120, while the sum is 29.

The square root of 858242 is about 926.4135145819. The cubic root of 858242 is about 95.0320113728.

The spelling of 858242 in words is "eight hundred fifty-eight thousand, two hundred forty-two".