342742 has 8 divisors (see below), whose sum is σ = 516600. Its totient is φ = 170544.

The previous prime is 342733. The next prime is 342757. The reversal of 342742 is 247243.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

342742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 609 + ... + 1027.

It is an arithmetic number, because the mean of its divisors is an integer number (64575).

2³⁴²⁷⁴² is an apocalyptic number.

342742 is a deficient number, since it is larger than the sum of its proper divisors (173858).

342742 is a wasteful number, since it uses less digits than its factorization.

342742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its digits is 1344, while the sum is 22.

The square root of 342742 is about 585.4417135804. The cubic root of 342742 is about 69.9824445772.

Adding to 342742 its reverse (247243), we get a palindrome (589985).

The spelling of 342742 in words is "three hundred forty-two thousand, seven hundred forty-two", and thus it is an iban number.