1109256 has 16 divisors (see below), whose sum is σ = 2773200. Its totient is φ = 369744.

The previous prime is 1109249. The next prime is 1109257. The reversal of 1109256 is 6529011.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 46219 = 1109256 / (1 + 1 + 0 + 9 + 2 + 5 + 6).

It is not an unprimeable number, because it can be changed into a prime (1109257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23086 + ... + 23133.

It is an arithmetic number, because the mean of its divisors is an integer number (173325).

2^1109256 is an apocalyptic number.

It is an amenable number.

1109256 is an abundant number, since it is smaller than the sum of its proper divisors (1663944).

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

1109256 is a wasteful number, since it uses less digits than its factorization.

1109256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46228 (or 46224 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1109256 is about 1053.2122293251. The cubic root of 1109256 is about 103.5167421398.

The spelling of 1109256 in words is "one million, one hundred nine thousand, two hundred fifty-six".