2928256 has 16 divisors (see below), whose sum is σ = 5833890. Its totient is φ = 1464064.

The previous prime is 2928251. The next prime is 2928259. The reversal of 2928256 is 6528292.

It can be written as a sum of positive squares in only one way, i.e., 1960000 + 968256 = 1400^2 + 984^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a d-powerful number, because it can be written as 2 + 9⁶ + 2² + 8⁴ + 2²¹ + 5⁶ + 6⁷ .

It is not an unprimeable number, because it can be changed into a prime (2928251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11311 + ... + 11566.

2^2928256 is an apocalyptic number.

It is an amenable number.

2928256 is a deficient number, since it is larger than the sum of its proper divisors (2905634).

2928256 is an equidigital number, since it uses as much as digits as its factorization.

2928256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22891 (or 22879 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 2928256 is about 1711.2147731948. The cubic root of 2928256 is about 143.0659711579.

The spelling of 2928256 in words is "two million, nine hundred twenty-eight thousand, two hundred fifty-six".