549330 has 16 divisors (see below), whose sum is σ = 1318464. Its totient is φ = 146480.

The previous prime is 549323. The next prime is 549331. The reversal of 549330 is 33945.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 549330.

It is not an unprimeable number, because it can be changed into a prime (549331) by changing a digit.

549330 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 7 ways as a sum of consecutive naturals, for example, 9126 + ... + 9185.

It is an arithmetic number, because the mean of its divisors is an integer number (82404).

2⁵⁴⁹³³⁰ is an apocalyptic number.

549330 is an abundant number, since it is smaller than the sum of its proper divisors (769134).

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

549330 is a wasteful number, since it uses less digits than its factorization.

549330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18321.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 549330 is about 741.1679971504. The cubic root of 549330 is about 81.8988441323.

The spelling of 549330 in words is "five hundred forty-nine thousand, three hundred thirty".