549480 has 64 divisors (see below), whose sum is σ = 1742400. Its totient is φ = 138240.

The previous prime is 549449. The next prime is 549481. The reversal of 549480 is 84945.

549480 is nontrivially palindromic in base 16.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (549481) by changing a digit.

549480 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 15 ways as a sum of consecutive naturals, for example, 2160 + ... + 2400.

It is an arithmetic number, because the mean of its divisors is an integer number (27225).

2⁵⁴⁹⁴⁸⁰ 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 549480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871200).

549480 is an abundant number, since it is smaller than the sum of its proper divisors (1192920).

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

549480 is a wasteful number, since it uses less digits than its factorization.

549480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 549480 is about 741.2691818766. The cubic root of 549480 is about 81.9062978843.

The spelling of 549480 in words is "five hundred forty-nine thousand, four hundred eighty".