342406 has 4 divisors (see below), whose sum is σ = 513612. Its totient is φ = 171202.

The previous prime is 342389. The next prime is 342413. The reversal of 342406 is 604243.

342406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85600 + ... + 85603.

It is an arithmetic number, because the mean of its divisors is an integer number (128403).

2³⁴²⁴⁰⁶ is an apocalyptic number.

342406 is a deficient number, since it is larger than the sum of its proper divisors (171206).

342406 is a wasteful number, since it uses less digits than its factorization.

342406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171205.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 342406 is about 585.1546804051. The cubic root of 342406 is about 69.9595684883.

Adding to 342406 its reverse (604243), we get a palindrome (946649).

The spelling of 342406 in words is "three hundred forty-two thousand, four hundred six".