304245 has 12 divisors (see below), whose sum is σ = 527436. Its totient is φ = 162240.

The previous prime is 304223. The next prime is 304253. The reversal of 304245 is 542403.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 178929 + 125316 = 423^2 + 354^2 .

It is not a de Polignac number, because 304245 - 2¹² = 300149 is a prime.

It is a super-3 number, since 3×304245³ = 84487333552518375, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3336 + ... + 3425.

It is an arithmetic number, because the mean of its divisors is an integer number (43953).

2³⁰⁴²⁴⁵ is an apocalyptic number.

It is an amenable number.

304245 is a deficient number, since it is larger than the sum of its proper divisors (223191).

304245 is a wasteful number, since it uses less digits than its factorization.

304245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6772 (or 6769 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 304245 is about 551.5840824389. The cubic root of 304245 is about 67.2575665307.

Adding to 304245 its reverse (542403), we get a palindrome (846648).

The spelling of 304245 in words is "three hundred four thousand, two hundred forty-five".