320028 has 12 divisors (see below), whose sum is σ = 746760. Its totient is φ = 106672.

The previous prime is 320027. The next prime is 320039. The reversal of 320028 is 820023.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 319989 and 320016.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320028.

It is not an unprimeable number, because it can be changed into a prime (320027) 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, 13323 + ... + 13346.

It is an arithmetic number, because the mean of its divisors is an integer number (62230).

2³²⁰⁰²⁸ is an apocalyptic number.

It is an amenable number.

320028 is an abundant number, since it is smaller than the sum of its proper divisors (426732).

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

320028 is a wasteful number, since it uses less digits than its factorization.

320028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26676 (or 26674 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 320028 is about 565.7101731452. The cubic root of 320028 is about 68.4010327808.

The spelling of 320028 in words is "three hundred twenty thousand, twenty-eight".