3428128 has 24 divisors (see below), whose sum is σ = 7363440. Its totient is φ = 1558080.

The previous prime is 3428099. The next prime is 3428137. The reversal of 3428128 is 8218243.

It is a junction number, because it is equal to n+sod(n) for n = 3428096 and 3428105.

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, 4518 + ... + 5221.

It is an arithmetic number, because the mean of its divisors is an integer number (306810).

Almost surely, 2^3428128 is an apocalyptic number.

It is an amenable number.

3428128 is an abundant number, since it is smaller than the sum of its proper divisors (3935312).

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

3428128 is a wasteful number, since it uses less digits than its factorization.

3428128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9760 (or 9752 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 3428128 is about 1851.5204562737. The cubic root of 3428128 is about 150.7829872432.

The spelling of 3428128 in words is "three million, four hundred twenty-eight thousand, one hundred twenty-eight".