504804636 has 120 divisors (see below), whose sum is σ = 1529343200. Its totient is φ = 142207488.

The previous prime is 504804631. The next prime is 504804637. The reversal of 504804636 is 636408405.

504804636 is a `hidden beast` number, since 504 + 80 + 46 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 504804636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504804631) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 164040 + ... + 167088.

Almost surely, 2^504804636 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 504804636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764671600).

504804636 is an abundant number, since it is smaller than the sum of its proper divisors (1024538564).

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

504804636 is a wasteful number, since it uses less digits than its factorization.

504804636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145 (or 3134 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 504804636 is about 22467.8578418148. The cubic root of 504804636 is about 796.2347207262.

The spelling of 504804636 in words is "five hundred four million, eight hundred four thousand, six hundred thirty-six".