503428 has 12 divisors (see below), whose sum is σ = 888832. Its totient is φ = 249480.

The previous prime is 503423. The next prime is 503431. The reversal of 503428 is 824305.

It is a junction number, because it is equal to n+sod(n) for n = 503399 and 503408.

It is not an unprimeable number, because it can be changed into a prime (503423) by changing a digit.

503428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13 + ... + 1003.

2⁵⁰³⁴²⁸ is an apocalyptic number.

It is an amenable number.

503428 is a deficient number, since it is larger than the sum of its proper divisors (385404).

503428 is a wasteful number, since it uses less digits than its factorization.

503428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 503428 is about 709.5266027430. The cubic root of 503428 is about 79.5510266672.

The spelling of 503428 in words is "five hundred three thousand, four hundred twenty-eight".