342078 has 32 divisors (see below), whose sum is σ = 767232. Its totient is φ = 100800.

The previous prime is 342077. The next prime is 342101. The reversal of 342078 is 870243.

342078 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4650 + ... + 4722.

It is an arithmetic number, because the mean of its divisors is an integer number (23976).

2³⁴²⁰⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383616).

342078 is an abundant number, since it is smaller than the sum of its proper divisors (425154).

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

342078 is a wasteful number, since it uses less digits than its factorization.

342078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 342078 is about 584.8743454794. The cubic root of 342078 is about 69.9372226284.

It can be divided in two parts, 34 and 2078, that added together give a palindrome (2112).

The spelling of 342078 in words is "three hundred forty-two thousand, seventy-eight".