342042 has 16 divisors (see below), whose sum is σ = 691680. Its totient is φ = 112752.

The previous prime is 342037. The next prime is 342047. The reversal of 342042 is 240243.

It is a happy number.

342042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (342037) and next prime (342047).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (342047) by changing a digit.

342042 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 7 ways as a sum of consecutive naturals, for example, 393 + ... + 915.

It is an arithmetic number, because the mean of its divisors is an integer number (43230).

2³⁴²⁰⁴² is an apocalyptic number.

342042 is an abundant number, since it is smaller than the sum of its proper divisors (349638).

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

342042 is a wasteful number, since it uses less digits than its factorization.

342042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 342042 is about 584.8435688285. The cubic root of 342042 is about 69.9347691643.

Adding to 342042 its reverse (240243), we get a palindrome (582285).

The spelling of 342042 in words is "three hundred forty-two thousand, forty-two", and thus it is an iban number.