503420 has 12 divisors (see below), whose sum is σ = 1057224. Its totient is φ = 201360.

The previous prime is 503413. The next prime is 503423. The reversal of 503420 is 24305.

It is a junction number, because it is equal to n+sod(n) for n = 503395 and 503404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503423) by changing a digit.

503420 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 12566 + ... + 12605.

It is an arithmetic number, because the mean of its divisors is an integer number (88102).

2⁵⁰³⁴²⁰ is an apocalyptic number.

It is an amenable number.

503420 is an abundant number, since it is smaller than the sum of its proper divisors (553804).

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

503420 is a wasteful number, since it uses less digits than its factorization.

503420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25180 (or 25178 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 503420 is about 709.5209651589. The cubic root of 503420 is about 79.5506052818.

Adding to 503420 its reverse (24305), we get a palindrome (527725).

The spelling of 503420 in words is "five hundred three thousand, four hundred twenty".