342904 has 8 divisors (see below), whose sum is σ = 642960. Its totient is φ = 171448.

The previous prime is 342899. The next prime is 342929. The reversal of 342904 is 409243.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342904.

It is an unprimeable 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 as a sum of consecutive naturals, namely, 21424 + ... + 21439.

It is an arithmetic number, because the mean of its divisors is an integer number (80370).

2³⁴²⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

342904 is a deficient number, since it is larger than the sum of its proper divisors (300056).

342904 is a wasteful number, since it uses less digits than its factorization.

342904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42869 (or 42865 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 342904 is about 585.5800543051. The cubic root of 342904 is about 69.9934687784.

The spelling of 342904 in words is "three hundred forty-two thousand, nine hundred four".