345330 has 32 divisors (see below), whose sum is σ = 921600. Its totient is φ = 92016.

The previous prime is 345329. The next prime is 345379. The reversal of 345330 is 33543.

It is a happy number.

345330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370 + ... + 909.

It is an arithmetic number, because the mean of its divisors is an integer number (28800).

2³⁴⁵³³⁰ is an apocalyptic number.

345330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

345330 is an abundant number, since it is smaller than the sum of its proper divisors (576270).

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

345330 is a wasteful number, since it uses less digits than its factorization.

345330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295 (or 1289 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 345330 is about 587.6478537356. The cubic root of 345330 is about 70.1581458450.

Adding to 345330 its reverse (33543), we get a palindrome (378873).

The spelling of 345330 in words is "three hundred forty-five thousand, three hundred thirty".