304830 has 32 divisors (see below), whose sum is σ = 813600. Its totient is φ = 81216.

The previous prime is 304813. The next prime is 304831. The reversal of 304830 is 38403.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304831) by changing a digit.

304830 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 15 ways as a sum of consecutive naturals, for example, 295 + ... + 834.

It is an arithmetic number, because the mean of its divisors is an integer number (25425).

2³⁰⁴⁸³⁰ is an apocalyptic number.

304830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

304830 is an abundant number, since it is smaller than the sum of its proper divisors (508770).

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

304830 is a wasteful number, since it uses less digits than its factorization.

304830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 304830 is about 552.1141186385. The cubic root of 304830 is about 67.3006463791.

The spelling of 304830 in words is "three hundred four thousand, eight hundred thirty".