549180 has 72 divisors (see below), whose sum is σ = 1742832. Its totient is φ = 145152.

The previous prime is 549169. The next prime is 549193. The reversal of 549180 is 81945.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4804 + ... + 4916.

It is an arithmetic number, because the mean of its divisors is an integer number (24206).

2⁵⁴⁹¹⁸⁰ 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 549180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871416).

549180 is an abundant number, since it is smaller than the sum of its proper divisors (1193652).

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

549180 is a wasteful number, since it uses less digits than its factorization.

549180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 549180 is about 741.0667986086. The cubic root of 549180 is about 81.8913890234.

It can be divided in two parts, 549 and 180, that added together give a 6-th power (729 = 3⁶).

The spelling of 549180 in words is "five hundred forty-nine thousand, one hundred eighty".