342186 has 32 divisors (see below), whose sum is σ = 762048. Its totient is φ = 101760.

The previous prime is 342179. The next prime is 342187. The reversal of 342186 is 681243.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (342187) by changing a digit.

342186 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 15 ways as a sum of consecutive naturals, for example, 3145 + ... + 3251.

It is an arithmetic number, because the mean of its divisors is an integer number (23814).

2³⁴²¹⁸⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381024).

342186 is an abundant number, since it is smaller than the sum of its proper divisors (419862).

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

342186 is a wasteful number, since it uses less digits than its factorization.

342186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166.

The product of its digits is 1152, while the sum is 24.

The square root of 342186 is about 584.9666657169. The cubic root of 342186 is about 69.9445819883.

It can be divided in two parts, 342 and 186, that added together give a triangular number (528 = T₃₂).

The spelling of 342186 in words is "three hundred forty-two thousand, one hundred eighty-six".