9428028 has 24 divisors (see below), whose sum is σ = 23157120. Its totient is φ = 2977200.

The previous prime is 9428017. The next prime is 9428033. The reversal of 9428028 is 8208249.

It is a self number, because there is not a number n which added to its sum of digits gives 9428028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20448 + ... + 20903.

It is an arithmetic number, because the mean of its divisors is an integer number (964880).

Almost surely, 2^9428028 is an apocalyptic number.

It is an amenable number.

9428028 is an abundant number, since it is smaller than the sum of its proper divisors (13729092).

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

9428028 is a wasteful number, since it uses less digits than its factorization.

9428028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41377 (or 41375 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 9428028 is about 3070.5094039915. The cubic root of 9428028 is about 211.2549795169.

The spelling of 9428028 in words is "nine million, four hundred twenty-eight thousand, twenty-eight".