304085 has 8 divisors (see below), whose sum is σ = 371256. Its totient is φ = 239040.

The previous prime is 304081. The next prime is 304091. The reversal of 304085 is 580403.

It can be written as a sum of positive squares in 4 ways, for example, as 14641 + 289444 = 121^2 + 538^2 .

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

It is not a de Polignac number, because 304085 - 2² = 304081 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304081) 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, 194 + ... + 803.

It is an arithmetic number, because the mean of its divisors is an integer number (46407).

2³⁰⁴⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

304085 is a deficient number, since it is larger than the sum of its proper divisors (67171).

304085 is an equidigital number, since it uses as much as digits as its factorization.

304085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 304085 is about 551.4390265478. The cubic root of 304085 is about 67.2457743921.

Adding to 304085 its reverse (580403), we get a palindrome (884488).

It can be divided in two parts, 3040 and 85, that added together give a 5-th power (3125 = 5⁵).

The spelling of 304085 in words is "three hundred four thousand, eighty-five".