1140256 has 24 divisors (see below), whose sum is σ = 2418444. Its totient is φ = 526080.

The previous prime is 1140253. The next prime is 1140257. The reversal of 1140256 is 6520411.

It can be written as a sum of positive squares in 2 ways, for example, as 1040400 + 99856 = 1020^2 + 316^2 .

It is not an unprimeable number, because it can be changed into a prime (1140253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955 + ... + 1786.

2^1140256 is an apocalyptic number.

1140256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1140256 is an abundant number, since it is smaller than the sum of its proper divisors (1278188).

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

1140256 is a wasteful number, since it uses less digits than its factorization.

1140256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764 (or 2756 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1140256 is about 1067.8277014575. The cubic root of 1140256 is about 104.4722116539.

Adding to 1140256 its reverse (6520411), we get a palindrome (7660667).

The spelling of 1140256 in words is "one million, one hundred forty thousand, two hundred fifty-six".