342646 has 16 divisors (see below), whose sum is σ = 552960. Its totient is φ = 158760.

The previous prime is 342607. The next prime is 342647. The reversal of 342646 is 646243.

342646 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 342646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342647) by changing a digit.

342646 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 in 7 ways as a sum of consecutive naturals, for example, 2635 + ... + 2761.

It is an arithmetic number, because the mean of its divisors is an integer number (34560).

2³⁴²⁶⁴⁶ is an apocalyptic number.

342646 is a deficient number, since it is larger than the sum of its proper divisors (210314).

342646 is a wasteful number, since it uses less digits than its factorization.

342646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219.

The product of its digits is 3456, while the sum is 25.

The square root of 342646 is about 585.3597184638. The cubic root of 342646 is about 69.9759100780.

Adding to 342646 its reverse (646243), we get a palindrome (988889).

The spelling of 342646 in words is "three hundred forty-two thousand, six hundred forty-six".