540044 has 12 divisors (see below), whose sum is σ = 957600. Its totient is φ = 266448.

The previous prime is 540041. The next prime is 540061. The reversal of 540044 is 440045.

It is not an unprimeable number, because it can be changed into a prime (540041) 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, 539 + ... + 1170.

It is an arithmetic number, because the mean of its divisors is an integer number (79800).

2⁵⁴⁰⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

540044 is a deficient number, since it is larger than the sum of its proper divisors (417556).

540044 is a wasteful number, since it uses less digits than its factorization.

540044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792 (or 1790 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 540044 is about 734.8768604331. The cubic root of 540044 is about 81.4347401855.

Adding to 540044 its reverse (440045), we get a palindrome (980089).

Subtracting from 540044 its reverse (440045), we obtain a palindrome (99999).

The spelling of 540044 in words is "five hundred forty thousand, forty-four".