304490 has 8 divisors (see below), whose sum is σ = 548100. Its totient is φ = 121792.

The previous prime is 304489. The next prime is 304501. The reversal of 304490 is 94403.

It can be written as a sum of positive squares in 2 ways, for example, as 279841 + 24649 = 529^2 + 157^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 304490.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15215 + ... + 15234.

2³⁰⁴⁴⁹⁰ is an apocalyptic number.

304490 is a deficient number, since it is larger than the sum of its proper divisors (243610).

304490 is a wasteful number, since it uses less digits than its factorization.

304490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30456.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 304490 is about 551.8061253738. The cubic root of 304490 is about 67.2756152334.

Adding to 304490 its reverse (94403), we get a palindrome (398893).

The spelling of 304490 in words is "three hundred four thousand, four hundred ninety".