1023256 has 16 divisors (see below), whose sum is σ = 2066400. Its totient is φ = 472224.

The previous prime is 1023229. The next prime is 1023257. The reversal of 1023256 is 6523201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4816 + ... + 5023.

It is an arithmetic number, because the mean of its divisors is an integer number (129150).

2^1023256 is an apocalyptic number.

It is an amenable number.

1023256 is an abundant number, since it is smaller than the sum of its proper divisors (1043144).

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

1023256 is a wasteful number, since it uses less digits than its factorization.

1023256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9858 (or 9854 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1023256 is about 1011.5611696778. The cubic root of 1023256 is about 100.7692671068.

Adding to 1023256 its reverse (6523201), we get a palindrome (7546457).

Subtracting 1023256 from its reverse (6523201), we obtain a palindrome (5499945).

The spelling of 1023256 in words is "one million, twenty-three thousand, two hundred fifty-six".