305330 has 16 divisors (see below), whose sum is σ = 578880. Its totient is φ = 115632.

The previous prime is 305329. The next prime is 305339. The reversal of 305330 is 33503.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (305339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614 + ... + 993.

It is an arithmetic number, because the mean of its divisors is an integer number (36180).

2³⁰⁵³³⁰ is an apocalyptic number.

305330 is a deficient number, since it is larger than the sum of its proper divisors (273550).

305330 is a wasteful number, since it uses less digits than its factorization.

305330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633.

The product of its (nonzero) digits is 135, while the sum is 14.

The square root of 305330 is about 552.5667380507. The cubic root of 305330 is about 67.3374230979.

Adding to 305330 its reverse (33503), we get a palindrome (338833).

The spelling of 305330 in words is "three hundred five thousand, three hundred thirty".