549924 has 12 divisors (see below), whose sum is σ = 1283184. Its totient is φ = 183304.

The previous prime is 549911. The next prime is 549937. The reversal of 549924 is 429945.

It is an interprime number because it is at equal distance from previous prime (549911) and next prime (549937).

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

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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, 22902 + ... + 22925.

It is an arithmetic number, because the mean of its divisors is an integer number (106932).

2⁵⁴⁹⁹²⁴ is an apocalyptic number.

It is an amenable number.

549924 is an abundant number, since it is smaller than the sum of its proper divisors (733260).

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

549924 is a wasteful number, since it uses less digits than its factorization.

549924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45834 (or 45832 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 549924 is about 741.5686077498. The cubic root of 549924 is about 81.9283530428.

The spelling of 549924 in words is "five hundred forty-nine thousand, nine hundred twenty-four".