503864440 has 32 divisors (see below), whose sum is σ = 1157820480. Its totient is φ = 197256832.

The previous prime is 503864423. The next prime is 503864443. The reversal of 503864440 is 44468305.

It is a junction number, because it is equal to n+sod(n) for n = 503864396 and 503864405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503864443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132127 + ... + 135886.

It is an arithmetic number, because the mean of its divisors is an integer number (36181890).

Almost surely, 2^503864440 is an apocalyptic number.

It is an amenable number.

503864440 is an abundant number, since it is smaller than the sum of its proper divisors (653956040).

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

503864440 is a wasteful number, since it uses less digits than its factorization.

503864440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268071 (or 268067 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 503864440 is about 22446.9249564389. The cubic root of 503864440 is about 795.7400858434.

The spelling of 503864440 in words is "five hundred three million, eight hundred sixty-four thousand, four hundred forty".