549944 has 8 divisors (see below), whose sum is σ = 1031160. Its totient is φ = 274968.

The previous prime is 549943. The next prime is 549949. The reversal of 549944 is 449945.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549943) by changing a digit.

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 as a sum of consecutive naturals, namely, 34364 + ... + 34379.

It is an arithmetic number, because the mean of its divisors is an integer number (128895).

2⁵⁴⁹⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

549944 is a deficient number, since it is larger than the sum of its proper divisors (481216).

549944 is a wasteful number, since it uses less digits than its factorization.

549944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68749 (or 68745 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 549944 is about 741.5820925562. The cubic root of 549944 is about 81.9293462389.

Subtracting from 549944 its reverse (449945), we obtain a palindrome (99999).

The spelling of 549944 in words is "five hundred forty-nine thousand, nine hundred forty-four".