540586 has 8 divisors (see below), whose sum is σ = 820260. Its totient is φ = 267168.

The previous prime is 540577. The next prime is 540587. The reversal of 540586 is 685045.

It can be written as a sum of positive squares in 2 ways, for example, as 540225 + 361 = 735^2 + 19^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (540587) 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, 1341 + ... + 1696.

2⁵⁴⁰⁵⁸⁶ is an apocalyptic number.

540586 is a deficient number, since it is larger than the sum of its proper divisors (279674).

540586 is a wasteful number, since it uses less digits than its factorization.

540586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 540586 is about 735.2455372187. The cubic root of 540586 is about 81.4619743069.

The spelling of 540586 in words is "five hundred forty thousand, five hundred eighty-six".