3128028 has 24 divisors (see below), whose sum is σ = 7327488. Its totient is φ = 1038576.

The previous prime is 3128011. The next prime is 3128033. The reversal of 3128028 is 8208213.

It is a junction number, because it is equal to n+sod(n) for n = 3127989 and 3128007.

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, 5275 + ... + 5837.

It is an arithmetic number, because the mean of its divisors is an integer number (305312).

Almost surely, 2^3128028 is an apocalyptic number.

It is an amenable number.

3128028 is an abundant number, since it is smaller than the sum of its proper divisors (4199460).

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

3128028 is a wasteful number, since it uses less digits than its factorization.

3128028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 3128028 is about 1768.6231933343. The cubic root of 3128028 is about 146.2480926042.

It can be divided in two parts, 31 and 28028, that multiplied together give a palindrome (868868).

The spelling of 3128028 in words is "three million, one hundred twenty-eight thousand, twenty-eight".