500504040 has 192 divisors, whose sum is σ = 1698278400. Its totient is φ = 127680000.

The previous prime is 500504033. The next prime is 500504057. The reversal of 500504040 is 40405005.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1993915 + ... + 1994165.

It is an arithmetic number, because the mean of its divisors is an integer number (8845200).

Almost surely, 2^500504040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 500504040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849139200).

500504040 is an abundant number, since it is smaller than the sum of its proper divisors (1197774360).

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

500504040 is a wasteful number, since it uses less digits than its factorization.

500504040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 500504040 is about 22371.9476130265. The cubic root of 500504040 is about 793.9671409565.

Adding to 500504040 its reverse (40405005), we get a palindrome (540909045).

The spelling of 500504040 in words is "five hundred million, five hundred four thousand, forty".