2856128 has 28 divisors (see below), whose sum is σ = 6184392. Its totient is φ = 1297920.

The previous prime is 2856121. The next prime is 2856149. The reversal of 2856128 is 8216582.

2856128 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 2856094 and 2856103.

It is not an unprimeable number, because it can be changed into a prime (2856121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325 + ... + 2732.

2^2856128 is an apocalyptic number.

It is an amenable number.

2856128 is an abundant number, since it is smaller than the sum of its proper divisors (3328264).

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

2856128 is a wasteful number, since it uses less digits than its factorization.

2856128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080 (or 4070 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 2856128 is about 1690.0082840034. The cubic root of 2856128 is about 141.8815384438.

The spelling of 2856128 in words is "two million, eight hundred fifty-six thousand, one hundred twenty-eight".