540502 has 8 divisors (see below), whose sum is σ = 838800. Its totient is φ = 260904.

The previous prime is 540469. The next prime is 540509. The reversal of 540502 is 205045.

It is a happy number.

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.

540502 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 4602 + ... + 4717.

It is an arithmetic number, because the mean of its divisors is an integer number (104850).

2⁵⁴⁰⁵⁰² is an apocalyptic number.

540502 is a deficient number, since it is larger than the sum of its proper divisors (298298).

540502 is a wasteful number, since it uses less digits than its factorization.

540502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9350.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 540502 is about 735.1884112253. The cubic root of 540502 is about 81.4577547129.

Adding to 540502 its reverse (205045), we get a palindrome (745547).

The spelling of 540502 in words is "five hundred forty thousand, five hundred two".