343446 has 8 divisors (see below), whose sum is σ = 686904. Its totient is φ = 114480.

The previous prime is 343433. The next prime is 343481. The reversal of 343446 is 644343.

It is a sphenic number, since it is the product of 3 distinct primes.

343446 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 28615 + ... + 28626.

It is an arithmetic number, because the mean of its divisors is an integer number (85863).

2³⁴³⁴⁴⁶ is an apocalyptic number.

343446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

343446 is a wasteful number, since it uses less digits than its factorization.

343446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57246.

The product of its digits is 3456, while the sum is 24.

The square root of 343446 is about 586.0426605632. The cubic root of 343446 is about 70.0303269952.

Adding to 343446 its reverse (644343), we get a palindrome (987789).

The spelling of 343446 in words is "three hundred forty-three thousand, four hundred forty-six".