342684 has 48 divisors (see below), whose sum is σ = 940800. Its totient is φ = 107568.

The previous prime is 342679. The next prime is 342691. The reversal of 342684 is 486243.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342684.

It is an unprimeable number.

342684 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, 1969 + ... + 2135.

It is an arithmetic number, because the mean of its divisors is an integer number (19600).

2³⁴²⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470400).

342684 is an abundant number, since it is smaller than the sum of its proper divisors (598116).

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

342684 is a wasteful number, since it uses less digits than its factorization.

342684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 191 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 342684 is about 585.3921762374. The cubic root of 342684 is about 69.9784967965.

The spelling of 342684 in words is "three hundred forty-two thousand, six hundred eighty-four".