342807 has 4 divisors (see below), whose sum is σ = 457080. Its totient is φ = 228536.

The previous prime is 342803. The next prime is 342821. The reversal of 342807 is 708243.

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 342807 - 2² = 342803 is a prime.

It is a D-number.

342807 is a lucky number.

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 342807.

It is not an unprimeable number, because it can be changed into a prime (342803) 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, 57132 + ... + 57137.

It is an arithmetic number, because the mean of its divisors is an integer number (114270).

2³⁴²⁸⁰⁷ is an apocalyptic number.

342807 is a deficient number, since it is larger than the sum of its proper divisors (114273).

342807 is a wasteful number, since it uses less digits than its factorization.

342807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114272.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 342807 is about 585.4972245878. The cubic root of 342807 is about 69.9868682850.

The spelling of 342807 in words is "three hundred forty-two thousand, eight hundred seven".