545304 has 16 divisors (see below), whose sum is σ = 1363320. Its totient is φ = 181760.

The previous prime is 545291. The next prime is 545329. The reversal of 545304 is 403545.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

545304 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11337 + ... + 11384.

2⁵⁴⁵³⁰⁴ is an apocalyptic number.

It is an amenable number.

545304 is an abundant number, since it is smaller than the sum of its proper divisors (818016).

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

545304 is a wasteful number, since it uses less digits than its factorization.

545304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22730 (or 22726 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 545304 is about 738.4470190880. The cubic root of 545304 is about 81.6982764396.

Adding to 545304 its reverse (403545), we get a palindrome (948849).

The spelling of 545304 in words is "five hundred forty-five thousand, three hundred four".