345342 has 8 divisors (see below), whose sum is σ = 690696. Its totient is φ = 115112.

The previous prime is 345329. The next prime is 345379. The reversal of 345342 is 243543.

It is a happy number.

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

345342 is an admirable number.

It is a super-2 number, since 2×345342² = 238522193928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

345342 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 3 ways as a sum of consecutive naturals, for example, 28773 + ... + 28784.

It is an arithmetic number, because the mean of its divisors is an integer number (86337).

2³⁴⁵³⁴² is an apocalyptic number.

345342 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.

345342 is a wasteful number, since it uses less digits than its factorization.

345342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57562.

The product of its digits is 1440, while the sum is 21.

The square root of 345342 is about 587.6580638433. The cubic root of 345342 is about 70.1589584861.

Adding to 345342 its reverse (243543), we get a palindrome (588885).

The spelling of 345342 in words is "three hundred forty-five thousand, three hundred forty-two".