504640 has 56 divisors (see below), whose sum is σ = 1280160. Its totient is φ = 188928.

The previous prime is 504631. The next prime is 504661. The reversal of 504640 is 46405.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6039 + ... + 6121.

It is an arithmetic number, because the mean of its divisors is an integer number (22860).

2⁵⁰⁴⁶⁴⁰ 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 504640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640080).

504640 is an abundant number, since it is smaller than the sum of its proper divisors (775520).

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

504640 is a wasteful number, since it uses less digits than its factorization.

504640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 504640 is about 710.3801799037. The cubic root of 504640 is about 79.6148150501.

The spelling of 504640 in words is "five hundred four thousand, six hundred forty".