342842 has 16 divisors (see below), whose sum is σ = 545832. Its totient is φ = 161280.

The previous prime is 342841. The next prime is 342847. The reversal of 342842 is 248243.

It can be written as a sum of positive squares in 4 ways, for example, as 175561 + 167281 = 419^2 + 409^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342842.

It is not an unprimeable number, because it can be changed into a prime (342841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2978 + ... + 3090.

2³⁴²⁸⁴² is an apocalyptic number.

342842 is a deficient number, since it is larger than the sum of its proper divisors (202990).

342842 is a wasteful number, since it uses less digits than its factorization.

342842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193.

The product of its digits is 1536, while the sum is 23.

The square root of 342842 is about 585.5271129504. The cubic root of 342842 is about 69.9892500499.

The spelling of 342842 in words is "three hundred forty-two thousand, eight hundred forty-two".