549824 has 42 divisors (see below), whose sum is σ = 1216152. Its totient is φ = 246400.

The previous prime is 549817. The next prime is 549833. The reversal of 549824 is 428945.

It is a Harshad number since it is a multiple of its sum of digits (32).

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 549824.

It is an unprimeable number.

549824 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7709 + ... + 7779.

It is an arithmetic number, because the mean of its divisors is an integer number (28956).

2⁵⁴⁹⁸²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608076).

549824 is an abundant number, since it is smaller than the sum of its proper divisors (666328).

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

549824 is a wasteful number, since it uses less digits than its factorization.

549824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 84 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 549824 is about 741.5011800395. The cubic root of 549824 is about 81.9233867008.

The spelling of 549824 in words is "five hundred forty-nine thousand, eight hundred twenty-four".