11440555 has 8 divisors (see below), whose sum is σ = 15689952. Its totient is φ = 7844928.

The previous prime is 11440553. The next prime is 11440567. The reversal of 11440555 is 55504411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11440555 - 2¹ = 11440553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11440553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163402 + ... + 163471.

It is an arithmetic number, because the mean of its divisors is an integer number (1961244).

Almost surely, 2^11440555 is an apocalyptic number.

11440555 is a deficient number, since it is larger than the sum of its proper divisors (4249397).

11440555 is an equidigital number, since it uses as much as digits as its factorization.

11440555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326885.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 11440555 is about 3382.3889486574. The cubic root of 11440555 is about 225.3282780067.

Adding to 11440555 its reverse (55504411), we get a palindrome (66944966).

It can be divided in two parts, 1144055 and 5, that multiplied together give a palindrome (5720275).

The spelling of 11440555 in words is "eleven million, four hundred forty thousand, five hundred fifty-five".