503491632 has 80 divisors (see below), whose sum is σ = 1489404672. Its totient is φ = 143573760.

The previous prime is 503491631. The next prime is 503491661. The reversal of 503491632 is 236194305.

It is a junction number, because it is equal to n+sod(n) for n = 503491593 and 503491602.

It is not an unprimeable number, because it can be changed into a prime (503491631) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 220963 + ... + 223229.

Almost surely, 2^503491632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503491632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (744702336).

503491632 is an abundant number, since it is smaller than the sum of its proper divisors (985913040).

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

503491632 is a wasteful number, since it uses less digits than its factorization.

503491632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946 (or 2940 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 503491632 is about 22438.6192088551. The cubic root of 503491632 is about 795.5437820747.

The spelling of 503491632 in words is "five hundred three million, four hundred ninety-one thousand, six hundred thirty-two".