503316240 has 240 divisors, whose sum is σ = 1834739712. Its totient is φ = 113799168.

The previous prime is 503316227. The next prime is 503316259. The reversal of 503316240 is 42613305.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 503316240.

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, 1493352 + ... + 1493688.

Almost surely, 2^503316240 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 503316240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (917369856).

503316240 is an abundant number, since it is smaller than the sum of its proper divisors (1331423472).

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

503316240 is a wasteful number, since it uses less digits than its factorization.

503316240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 503316240 is about 22434.7106065579. The cubic root of 503316240 is about 795.4513950906.

Adding to 503316240 its reverse (42613305), we get a palindrome (545929545).

The spelling of 503316240 in words is "five hundred three million, three hundred sixteen thousand, two hundred forty".