11440023040 has 80 divisors (see below), whose sum is σ = 27519354720. Its totient is φ = 4560977920.

The previous prime is 11440023029. The next prime is 11440023043. The reversal of 11440023040 is 4032004411.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 11440022999 and 11440023017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11440023043) 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, 788976 + ... + 803344.

It is an arithmetic number, because the mean of its divisors is an integer number (343991934).

Almost surely, 2^11440023040 is an apocalyptic number.

11440023040 is a gapful number since it is divisible by the number (10) 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 11440023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13759677360).

11440023040 is an abundant number, since it is smaller than the sum of its proper divisors (16079331680).

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

11440023040 is an equidigital number, since it uses as much as digits as its factorization.

11440023040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14703 (or 14687 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 11440023040 its reverse (4032004411), we get a palindrome (15472027451).

The spelling of 11440023040 in words is "eleven billion, four hundred forty million, twenty-three thousand, forty".