540518 has 16 divisors (see below), whose sum is σ = 898560. Its totient is φ = 241800.

The previous prime is 540517. The next prime is 540539. The reversal of 540518 is 815045.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 540493 and 540502.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540518.

It is not an unprimeable number, because it can be changed into a prime (540511) 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 7 ways as a sum of consecutive naturals, for example, 1583 + ... + 1893.

It is an arithmetic number, because the mean of its divisors is an integer number (56160).

2⁵⁴⁰⁵¹⁸ is an apocalyptic number.

540518 is a deficient number, since it is larger than the sum of its proper divisors (358042).

540518 is a wasteful number, since it uses less digits than its factorization.

540518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 540518 is about 735.1992927091. The cubic root of 540518 is about 81.4585584788.

The spelling of 540518 in words is "five hundred forty thousand, five hundred eighteen".