548820 has 36 divisors (see below), whose sum is σ = 1665300. Its totient is φ = 146304.

The previous prime is 548791. The next prime is 548827. The reversal of 548820 is 28845.

It can be written as a sum of positive squares in 2 ways, for example, as 121104 + 427716 = 348^2 + 654^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548827) by changing a digit.

548820 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1345 + ... + 1704.

2⁵⁴⁸⁸²⁰ is an apocalyptic number.

It is an amenable number.

548820 is an abundant number, since it is smaller than the sum of its proper divisors (1116480).

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

548820 is a wasteful number, since it uses less digits than its factorization.

548820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064 (or 3059 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 548820 is about 740.8238657063. The cubic root of 548820 is about 81.8734912217.

The spelling of 548820 in words is "five hundred forty-eight thousand, eight hundred twenty".