342678 has 32 divisors (see below), whose sum is σ = 806400. Its totient is φ = 95040.

The previous prime is 342673. The next prime is 342679. The reversal of 342678 is 876243.

342678 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (8064) is a multiple of the sum of its prime divisors (252).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342673) by changing a digit.

342678 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, 1623 + ... + 1821.

It is an arithmetic number, because the mean of its divisors is an integer number (25200).

2³⁴²⁶⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403200).

342678 is an abundant number, since it is smaller than the sum of its proper divisors (463722).

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

342678 is a wasteful number, since it uses less digits than its factorization.

342678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252.

The product of its digits is 8064, while the sum is 30.

The square root of 342678 is about 585.3870514455. The cubic root of 342678 is about 69.9780883800.

The spelling of 342678 in words is "three hundred forty-two thousand, six hundred seventy-eight".