503075428 has 12 divisors (see below), whose sum is σ = 882286720. Its totient is φ = 250993512.

The previous prime is 503075423. The next prime is 503075429. The reversal of 503075428 is 824570305.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 503075393 and 503075402.

It is not an unprimeable number, because it can be changed into a prime (503075423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133968 + ... + 137671.

Almost surely, 2^503075428 is an apocalyptic number.

It is an amenable number.

503075428 is a deficient number, since it is larger than the sum of its proper divisors (379211292).

503075428 is a wasteful number, since it uses less digits than its factorization.

503075428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272106 (or 272104 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 503075428 is about 22429.3430131157. The cubic root of 503075428 is about 795.3245134311.

The spelling of 503075428 in words is "five hundred three million, seventy-five thousand, four hundred twenty-eight".