503328 has 72 divisors (see below), whose sum is σ = 1551312. Its totient is φ = 142464.

The previous prime is 503317. The next prime is 503339. The reversal of 503328 is 823305.

It is an interprime number because it is at equal distance from previous prime (503317) and next prime (503339).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4651 + ... + 4757.

It is an arithmetic number, because the mean of its divisors is an integer number (21546).

2⁵⁰³³²⁸ 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 503328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (775656).

503328 is an abundant number, since it is smaller than the sum of its proper divisors (1047984).

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

503328 is a wasteful number, since it uses less digits than its factorization.

503328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 503328 is about 709.4561297219. The cubic root of 503328 is about 79.5457590291.

The spelling of 503328 in words is "five hundred three thousand, three hundred twenty-eight".