304660 has 12 divisors (see below), whose sum is σ = 639828. Its totient is φ = 121856.

The previous prime is 304651. The next prime is 304663. The reversal of 304660 is 66403.

It is a happy number.

304660 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 76176 + 228484 = 276^2 + 478^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304663) by changing a digit.

304660 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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7597 + ... + 7636.

It is an arithmetic number, because the mean of its divisors is an integer number (53319).

2³⁰⁴⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

304660 is an abundant number, since it is smaller than the sum of its proper divisors (335168).

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

304660 is a wasteful number, since it uses less digits than its factorization.

304660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15242 (or 15240 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 304660 is about 551.9601434886. The cubic root of 304660 is about 67.2881331342.

The spelling of 304660 in words is "three hundred four thousand, six hundred sixty".