503345430 has 48 divisors (see below), whose sum is σ = 1495656864. Its totient is φ = 115050240.

The previous prime is 503345429. The next prime is 503345459. The reversal of 503345430 is 34543305.

It is a happy number.

503345430 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 503345394 and 503345403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 398851 + ... + 400110.

It is an arithmetic number, because the mean of its divisors is an integer number (31159518).

Almost surely, 2^503345430 is an apocalyptic number.

503345430 is an abundant number, since it is smaller than the sum of its proper divisors (992311434).

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

503345430 is a wasteful number, since it uses less digits than its factorization.

503345430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798981 (or 798978 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 503345430 is about 22435.3611515393. The cubic root of 503345430 is about 795.4667722865.

Adding to 503345430 its reverse (34543305), we get a palindrome (537888735).

The spelling of 503345430 in words is "five hundred three million, three hundred forty-five thousand, four hundred thirty".