540066 has 8 divisors (see below), whose sum is σ = 1080144. Its totient is φ = 180020.

The previous prime is 540061. The next prime is 540079. The reversal of 540066 is 660045.

It is a sphenic number, since it is the product of 3 distinct primes.

540066 is an admirable number.

540066 is a modest number, since divided by 66 gives 54 as remainder.

It is not an unprimeable number, because it can be changed into a prime (540061) by changing a digit.

540066 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 3 ways as a sum of consecutive naturals, for example, 45000 + ... + 45011.

It is an arithmetic number, because the mean of its divisors is an integer number (135018).

2⁵⁴⁰⁰⁶⁶ is an apocalyptic number.

540066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

540066 is a wasteful number, since it uses less digits than its factorization.

540066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90016.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 540066 is about 734.8918287748. The cubic root of 540066 is about 81.4358459842.

Subtracting from 540066 its sum of digits (21), we obtain a palindrome (540045).

The spelling of 540066 in words is "five hundred forty thousand, sixty-six".