2840128 has 28 divisors (see below), whose sum is σ = 5689600. Its totient is φ = 1406592.

The previous prime is 2840119. The next prime is 2840161. The reversal of 2840128 is 8210482.

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, 12625 + ... + 12847.

It is an arithmetic number, because the mean of its divisors is an integer number (203200).

2^2840128 is an apocalyptic number.

It is an amenable number.

2840128 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

2840128 is a wasteful number, since it uses less digits than its factorization.

2840128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 2840128 is about 1685.2679312204. The cubic root of 2840128 is about 141.6161025236.

The spelling of 2840128 in words is "two million, eight hundred forty thousand, one hundred twenty-eight".