342919 has 4 divisors (see below), whose sum is σ = 344344. Its totient is φ = 341496.

The previous prime is 342899. The next prime is 342929. The reversal of 342919 is 919243.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 342919 - 2⁷ = 342791 is a prime.

It is a super-2 number, since 2×342919² = 235186881122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342929) 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 3 ways as a sum of consecutive naturals, for example, 252 + ... + 865.

It is an arithmetic number, because the mean of its divisors is an integer number (86086).

2³⁴²⁹¹⁹ is an apocalyptic number.

342919 is a deficient number, since it is larger than the sum of its proper divisors (1425).

342919 is a wasteful number, since it uses less digits than its factorization.

342919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424.

The product of its digits is 1944, while the sum is 28.

The square root of 342919 is about 585.5928619784. The cubic root of 342919 is about 69.9944893621.

The spelling of 342919 in words is "three hundred forty-two thousand, nine hundred nineteen".