304812 has 18 divisors (see below), whose sum is σ = 770588. Its totient is φ = 101592.

The previous prime is 304807. The next prime is 304813. The reversal of 304812 is 218403.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 304812.

It is not an unprimeable number, because it can be changed into a prime (304813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4198 + ... + 4269.

2³⁰⁴⁸¹² is an apocalyptic number.

It is an amenable number.

304812 is an abundant number, since it is smaller than the sum of its proper divisors (465776).

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

304812 is a wasteful number, since it uses less digits than its factorization.

304812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8477 (or 8472 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 304812 is about 552.0978174201. The cubic root of 304812 is about 67.2993216676.

The spelling of 304812 in words is "three hundred four thousand, eight hundred twelve".