1028256 has 24 divisors (see below), whose sum is σ = 2699424. Its totient is φ = 342720.

The previous prime is 1028243. The next prime is 1028263. The reversal of 1028256 is 6528201.

1028256 = 334² + 335² + ... + 342².

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam 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, 5260 + ... + 5451.

It is an arithmetic number, because the mean of its divisors is an integer number (112476).

2^1028256 is an apocalyptic number.

1028256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1028256 is an abundant number, since it is smaller than the sum of its proper divisors (1671168).

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

1028256 is a wasteful number, since it uses less digits than its factorization.

1028256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10724 (or 10716 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1028256 is about 1014.0295853672. The cubic root of 1028256 is about 100.9331322254.

Subtracting 1028256 from its reverse (6528201), we obtain a palindrome (5499945).

It can be divided in two parts, 102825 and 6, that added together give a triangular number (102831 = T₄₅₃).

The spelling of 1028256 in words is "one million, twenty-eight thousand, two hundred fifty-six".