842166 has 48 divisors (see below), whose sum is σ = 2031120. Its totient is φ = 250560.

The previous prime is 842161. The next prime is 842167. The reversal of 842166 is 661248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842161) by changing a digit.

842166 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 23 ways as a sum of consecutive naturals, for example, 13776 + ... + 13836.

It is an arithmetic number, because the mean of its divisors is an integer number (42315).

2⁸⁴²¹⁶⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 842166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1015560).

842166 is an abundant number, since it is smaller than the sum of its proper divisors (1188954).

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

842166 is a wasteful number, since it uses less digits than its factorization.

842166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 138 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 842166 is about 917.6960281052. The cubic root of 842166 is about 94.4349094052.

The spelling of 842166 in words is "eight hundred forty-two thousand, one hundred sixty-six".