2028256 has 24 divisors (see below), whose sum is σ = 4024944. Its totient is φ = 1006080.

The previous prime is 2028241. The next prime is 2028263. The reversal of 2028256 is 6528202.

It is a super-2 number, since 2×2028256² = 8227644803072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2028256.

It is a congruent number.

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, 7581 + ... + 7843.

It is an arithmetic number, because the mean of its divisors is an integer number (167706).

2^2028256 is an apocalyptic number.

It is an amenable number.

2028256 is a deficient number, since it is larger than the sum of its proper divisors (1996688).

2028256 is a wasteful number, since it uses less digits than its factorization.

2028256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2028256 is about 1424.1685293532. The cubic root of 2028256 is about 126.5826713061.

The spelling of 2028256 in words is "two million, twenty-eight thousand, two hundred fifty-six".