503312430 has 32 divisors (see below), whose sum is σ = 1217470464. Its totient is φ = 133158816.

The previous prime is 503312417. The next prime is 503312431. The reversal of 503312430 is 34213305.

It is a junction number, because it is equal to n+sod(n) for n = 503312397 and 503312406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503312431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62242 + ... + 69861.

It is an arithmetic number, because the mean of its divisors is an integer number (38045952).

Almost surely, 2^503312430 is an apocalyptic number.

503312430 is an abundant number, since it is smaller than the sum of its proper divisors (714158034).

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

503312430 is a wasteful number, since it uses less digits than its factorization.

503312430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132240.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 503312430 is about 22434.6256933340. The cubic root of 503312430 is about 795.4493879512.

Adding to 503312430 its reverse (34213305), we get a palindrome (537525735).

The spelling of 503312430 in words is "five hundred three million, three hundred twelve thousand, four hundred thirty".