304530 has 16 divisors (see below), whose sum is σ = 730944. Its totient is φ = 81200.

The previous prime is 304523. The next prime is 304537. The reversal of 304530 is 35403.

304530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (304523) and next prime (304537).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 304530.

It is not an unprimeable number, because it can be changed into a prime (304537) 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, 5046 + ... + 5105.

It is an arithmetic number, because the mean of its divisors is an integer number (45684).

2³⁰⁴⁵³⁰ is an apocalyptic number.

304530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

304530 is an abundant number, since it is smaller than the sum of its proper divisors (426414).

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

304530 is a wasteful number, since it uses less digits than its factorization.

304530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10161.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 304530 is about 551.8423687975. The cubic root of 304530 is about 67.2785610409.

304530 divided by its sum of digits (15) gives a palindrome (20302).

Adding to 304530 its reverse (35403), we get a palindrome (339933).

It can be divided in two parts, 30 and 4530, that added together give a triangular number (4560 = T₉₅).

The spelling of 304530 in words is "three hundred four thousand, five hundred thirty".