304485 has 16 divisors (see below), whose sum is σ = 497664. Its totient is φ = 158912.

The previous prime is 304481. The next prime is 304489. The reversal of 304485 is 584403.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (304481) and next prime (304489).

It is a cyclic number.

It is not a de Polignac number, because 304485 - 2² = 304481 is a prime.

It is a super-2 number, since 2×304485² = 185422230450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604 + ... + 986.

It is an arithmetic number, because the mean of its divisors is an integer number (31104).

2³⁰⁴⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

304485 is a deficient number, since it is larger than the sum of its proper divisors (193179).

304485 is a wasteful number, since it uses less digits than its factorization.

304485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 304485 is about 551.8015947784. The cubic root of 304485 is about 67.2752469893.

Adding to 304485 its reverse (584403), we get a palindrome (888888).

The spelling of 304485 in words is "three hundred four thousand, four hundred eighty-five".