1100256 has 48 divisors (see below), whose sum is σ = 2946384. Its totient is φ = 359424.

The previous prime is 1100249. The next prime is 1100261. The reversal of 1100256 is 6520011.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6930 + ... + 7086.

It is an arithmetic number, because the mean of its divisors is an integer number (61383).

2^1100256 is an apocalyptic number.

1100256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1100256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473192).

1100256 is an abundant number, since it is smaller than the sum of its proper divisors (1846128).

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

1100256 is a wasteful number, since it uses less digits than its factorization.

1100256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1100256 is about 1048.9308842817. The cubic root of 1100256 is about 103.2360189157.

Adding to 1100256 its reverse (6520011), we get a palindrome (7620267).

The spelling of 1100256 in words is "one million, one hundred thousand, two hundred fifty-six".