502540 has 12 divisors (see below), whose sum is σ = 1055376. Its totient is φ = 201008.

The previous prime is 502517. The next prime is 502543. The reversal of 502540 is 45205.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (502543) by changing a digit.

502540 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, 12544 + ... + 12583.

It is an arithmetic number, because the mean of its divisors is an integer number (87948).

2⁵⁰²⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

502540 is an abundant number, since it is smaller than the sum of its proper divisors (552836).

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

502540 is a wasteful number, since it uses less digits than its factorization.

502540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25136 (or 25134 counting only the distinct ones).

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

The square root of 502540 is about 708.9005572011. The cubic root of 502540 is about 79.5042256103.

Adding to 502540 its reverse (45205), we get a palindrome (547745).

The spelling of 502540 in words is "five hundred two thousand, five hundred forty".