342811 has 4 divisors (see below), whose sum is σ = 391792. Its totient is φ = 293832.

The previous prime is 342803. The next prime is 342821. The reversal of 342811 is 118243.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 342811 - 2³ = 342803 is a prime.

It is the 586-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342821) by changing a digit.

It is a nontrivial repunit in base 585.

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, 24480 + ... + 24493.

It is an arithmetic number, because the mean of its divisors is an integer number (97948).

2³⁴²⁸¹¹ is an apocalyptic number.

342811 is a deficient number, since it is larger than the sum of its proper divisors (48981).

342811 is an equidigital number, since it uses as much as digits as its factorization.

342811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48980.

The product of its digits is 192, while the sum is 19.

The square root of 342811 is about 585.5006404779. The cubic root of 342811 is about 69.9871404949.

The spelling of 342811 in words is "three hundred forty-two thousand, eight hundred eleven".