500440520 has 32 divisors (see below), whose sum is σ = 1126639800. Its totient is φ = 200060928.

The previous prime is 500440513. The next prime is 500440529. The reversal of 500440520 is 25044005.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 484264036 + 16176484 = 22006^2 + 4022^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 500440492 and 500440501.

It is not an unprimeable number, because it can be changed into a prime (500440529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114536 + ... + 118824.

Almost surely, 2^500440520 is an apocalyptic number.

It is an amenable number.

500440520 is an abundant number, since it is smaller than the sum of its proper divisors (626199280).

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

500440520 is a wasteful number, since it uses less digits than its factorization.

500440520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7217 (or 7213 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 500440520 is about 22370.5279329747. The cubic root of 500440520 is about 793.9335515330.

Adding to 500440520 its reverse (25044005), we get a palindrome (525484525).

The spelling of 500440520 in words is "five hundred million, four hundred forty thousand, five hundred twenty".