504404530 has 48 divisors (see below), whose sum is σ = 1058503680. Its totient is φ = 172555488.

The previous prime is 504404521. The next prime is 504404539. The reversal of 504404530 is 35404405.

It is an interprime number because it is at equal distance from previous prime (504404521) and next prime (504404539).

It is a junction number, because it is equal to n+sod(n) for n = 504404495 and 504404504.

It is not an unprimeable number, because it can be changed into a prime (504404539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 302479 + ... + 304141.

It is an arithmetic number, because the mean of its divisors is an integer number (22052160).

Almost surely, 2^504404530 is an apocalyptic number.

504404530 is an abundant number, since it is smaller than the sum of its proper divisors (554099150).

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

504404530 is a wasteful number, since it uses less digits than its factorization.

504404530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303 (or 2296 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 504404530 is about 22458.9521126877. The cubic root of 504404530 is about 796.0243010434.

Adding to 504404530 its reverse (35404405), we get a palindrome (539808935).

The spelling of 504404530 in words is "five hundred four million, four hundred four thousand, five hundred thirty".