549744 has 40 divisors (see below), whose sum is σ = 1531152. Its totient is φ = 168960.

The previous prime is 549739. The next prime is 549749. The reversal of 549744 is 447945.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (549739) and next prime (549749).

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 549744.

It is not an unprimeable number, because it can be changed into a prime (549749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184 + ... + 1064.

2⁵⁴⁹⁷⁴⁴ 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 549744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765576).

549744 is an abundant number, since it is smaller than the sum of its proper divisors (981408).

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

549744 is a wasteful number, since it uses less digits than its factorization.

549744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 899 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 549744 is about 741.4472334563. The cubic root of 549744 is about 81.9194131936.

The spelling of 549744 in words is "five hundred forty-nine thousand, seven hundred forty-four".