503421340 has 48 divisors (see below), whose sum is σ = 1178301600. Its totient is φ = 179546112.

The previous prime is 503421337. The next prime is 503421389. The reversal of 503421340 is 43124305.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable 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 15 ways as a sum of consecutive naturals, for example, 32505 + ... + 45424.

It is an arithmetic number, because the mean of its divisors is an integer number (24547950).

Almost surely, 2^503421340 is an apocalyptic number.

It is an amenable number.

503421340 is an abundant number, since it is smaller than the sum of its proper divisors (674880260).

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

503421340 is a wasteful number, since it uses less digits than its factorization.

503421340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77974 (or 77972 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 503421340 is about 22437.0528367698. The cubic root of 503421340 is about 795.5067586417.

Adding to 503421340 its reverse (43124305), we get a palindrome (546545645).

The spelling of 503421340 in words is "five hundred three million, four hundred twenty-one thousand, three hundred forty".