303728 has 20 divisors (see below), whose sum is σ = 604128. Its totient is φ = 147840.

The previous prime is 303727. The next prime is 303731. The reversal of 303728 is 827303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425 + ... + 887.

2³⁰³⁷²⁸ is an apocalyptic number.

It is an amenable number.

303728 is a deficient number, since it is larger than the sum of its proper divisors (300400).

303728 is a wasteful number, since it uses less digits than its factorization.

303728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 303728 is about 551.1152329595. The cubic root of 303728 is about 67.2194482636.

The spelling of 303728 in words is "three hundred three thousand, seven hundred twenty-eight".