343742 has 16 divisors (see below), whose sum is σ = 604032. Its totient is φ = 143640.

The previous prime is 343727. The next prime is 343769. The reversal of 343742 is 247343.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

343742 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317 + ... + 887.

It is an arithmetic number, because the mean of its divisors is an integer number (37752).

2³⁴³⁷⁴² is an apocalyptic number.

343742 is a deficient number, since it is larger than the sum of its proper divisors (260290).

343742 is a wasteful number, since it uses less digits than its factorization.

343742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623.

The product of its digits is 2016, while the sum is 23.

The square root of 343742 is about 586.2951475153. The cubic root of 343742 is about 70.0504398364.

The spelling of 343742 in words is "three hundred forty-three thousand, seven hundred forty-two", and thus it is an iban number.