345304 has 16 divisors (see below), whose sum is σ = 685800. Its totient is φ = 162432.

The previous prime is 345271. The next prime is 345307. The reversal of 345304 is 403543.

345304 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1134 + ... + 1405.

2³⁴⁵³⁰⁴ is an apocalyptic number.

345304 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

345304 is a deficient number, since it is larger than the sum of its proper divisors (340496).

345304 is a wasteful number, since it uses less digits than its factorization.

345304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562 (or 2558 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 345304 is about 587.6257312269. The cubic root of 345304 is about 70.1563850582.

Adding to 345304 its reverse (403543), we get a palindrome (748847).

The spelling of 345304 in words is "three hundred forty-five thousand, three hundred four".