540506 has 8 divisors (see below), whose sum is σ = 817344. Its totient is φ = 268060.

The previous prime is 540469. The next prime is 540509. The reversal of 540506 is 605045.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540509) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 770 + ... + 1293.

It is an arithmetic number, because the mean of its divisors is an integer number (102168).

2⁵⁴⁰⁵⁰⁶ is an apocalyptic number.

540506 is a deficient number, since it is larger than the sum of its proper divisors (276838).

540506 is a wasteful number, since it uses less digits than its factorization.

540506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 540506 is about 735.1911316114. The cubic root of 540506 is about 81.4579556558.

The spelling of 540506 in words is "five hundred forty thousand, five hundred six".