28332028 has 12 divisors (see below), whose sum is σ = 49831600. Its totient is φ = 14094432.

The previous prime is 28332001. The next prime is 28332061. The reversal of 28332028 is 82023382.

It is a junction number, because it is equal to n+sod(n) for n = 28331987 and 28332005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17001 + ... + 18592.

Almost surely, 2^28332028 is an apocalyptic number.

It is an amenable number.

28332028 is a deficient number, since it is larger than the sum of its proper divisors (21499572).

28332028 is a wasteful number, since it uses less digits than its factorization.

28332028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35796 (or 35794 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 28332028 is about 5322.7838580953. The cubic root of 28332028 is about 304.8544607071.

The spelling of 28332028 in words is "twenty-eight million, three hundred thirty-two thousand, twenty-eight".