540020 has 48 divisors (see below), whose sum is σ = 1279488. Its totient is φ = 190080.

The previous prime is 539993. The next prime is 540041. The reversal of 540020 is 20045.

540020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 539983 and 540010.

It is a congruent number.

It is an unprimeable number.

540020 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8027 + ... + 8093.

It is an arithmetic number, because the mean of its divisors is an integer number (26656).

2⁵⁴⁰⁰²⁰ 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 540020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (639744).

540020 is an abundant number, since it is smaller than the sum of its proper divisors (739468).

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

540020 is a wasteful number, since it uses less digits than its factorization.

540020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 540020 is about 734.8605309853. The cubic root of 540020 is about 81.4335338253.

Adding to 540020 its reverse (20045), we get a palindrome (560065).

The spelling of 540020 in words is "five hundred forty thousand, twenty".