503411328 has 128 divisors (see below), whose sum is σ = 1698096000. Its totient is φ = 143824896.

The previous prime is 503411309. The next prime is 503411333. The reversal of 503411328 is 823114305.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13788 + ... + 34596.

It is an arithmetic number, because the mean of its divisors is an integer number (13266375).

Almost surely, 2^503411328 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 503411328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849048000).

503411328 is an abundant number, since it is smaller than the sum of its proper divisors (1194684672).

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

503411328 is a wasteful number, since it uses less digits than its factorization.

503411328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20839 (or 20821 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 503411328 is about 22436.8297225789. The cubic root of 503411328 is about 795.5014849502.

The spelling of 503411328 in words is "five hundred three million, four hundred eleven thousand, three hundred twenty-eight".