1768256 has 28 divisors (see below), whose sum is σ = 4011168. Its totient is φ = 757632.

The previous prime is 1768253. The next prime is 1768303. The reversal of 1768256 is 6528671.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1768253) 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, 1526 + ... + 2421.

It is an arithmetic number, because the mean of its divisors is an integer number (143256).

2^1768256 is an apocalyptic number.

1768256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1768256 is an abundant number, since it is smaller than the sum of its proper divisors (2242912).

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

1768256 is an equidigital number, since it uses as much as digits as its factorization.

1768256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3966 (or 3956 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 1768256 is about 1329.7578726971. The cubic root of 1768256 is about 120.9247078436.

The spelling of 1768256 in words is "one million, seven hundred sixty-eight thousand, two hundred fifty-six".