503389420 has 48 divisors (see below), whose sum is σ = 1114777440. Its totient is φ = 190411776.

The previous prime is 503389409. The next prime is 503389421. The reversal of 503389420 is 24983305.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (503389421) 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 15 ways as a sum of consecutive naturals, for example, 323364 + ... + 324916.

It is an arithmetic number, because the mean of its divisors is an integer number (23224530).

Almost surely, 2^503389420 is an apocalyptic number.

It is an amenable number.

503389420 is an abundant number, since it is smaller than the sum of its proper divisors (611388020).

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

503389420 is a wasteful number, since it uses less digits than its factorization.

503389420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434 (or 2432 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 503389420 is about 22436.3415021255. The cubic root of 503389420 is about 795.4899449508.

The spelling of 503389420 in words is "five hundred three million, three hundred eighty-nine thousand, four hundred twenty".