549804 has 12 divisors (see below), whose sum is σ = 1282904. Its totient is φ = 183264.

The previous prime is 549767. The next prime is 549817. The reversal of 549804 is 408945.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 7.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549804.

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, 22897 + ... + 22920.

2⁵⁴⁹⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

549804 is an abundant number, since it is smaller than the sum of its proper divisors (733100).

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

549804 is a wasteful number, since it uses less digits than its factorization.

549804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45824 (or 45822 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 549804 is about 741.4876937617. The cubic root of 549804 is about 81.9223933601.

The spelling of 549804 in words is "five hundred forty-nine thousand, eight hundred four".