548440 has 16 divisors (see below), whose sum is σ = 1234080. Its totient is φ = 219360.

The previous prime is 548423. The next prime is 548441. The reversal of 548440 is 44845.

548440 is nontrivially palindromic in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6816 + ... + 6895.

It is an arithmetic number, because the mean of its divisors is an integer number (77130).

2⁵⁴⁸⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

548440 is an abundant number, since it is smaller than the sum of its proper divisors (685640).

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

548440 is a wasteful number, since it uses less digits than its factorization.

548440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13722 (or 13718 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 548440 is about 740.5673500770. The cubic root of 548440 is about 81.8545906047.

The spelling of 548440 in words is "five hundred forty-eight thousand, four hundred forty".