549604 has 12 divisors (see below), whose sum is σ = 1049328. Its totient is φ = 249800.

The previous prime is 549589. The next prime is 549607. The reversal of 549604 is 406945.

It is not an unprimeable number, because it can be changed into a prime (549607) by changing a digit.

549604 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6202 + ... + 6289.

It is an arithmetic number, because the mean of its divisors is an integer number (87444).

2⁵⁴⁹⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

549604 is a deficient number, since it is larger than the sum of its proper divisors (499724).

549604 is a wasteful number, since it uses less digits than its factorization.

549604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12506 (or 12504 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 549604 is about 741.3528174898. The cubic root of 549604 is about 81.9124586284.

The spelling of 549604 in words is "five hundred forty-nine thousand, six hundred four".