11440331 has 4 divisors (see below), whose sum is σ = 13074672. Its totient is φ = 9805992.

The previous prime is 11440321. The next prime is 11440339. The reversal of 11440331 is 13304411.

11440331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11440331 - 2¹⁸ = 11178187 is a prime.

It is a super-2 number, since 2×11440331² = 261762346779122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11440339) 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, 817160 + ... + 817173.

It is an arithmetic number, because the mean of its divisors is an integer number (3268668).

Almost surely, 2^11440331 is an apocalyptic number.

11440331 is a deficient number, since it is larger than the sum of its proper divisors (1634341).

11440331 is an equidigital number, since it uses as much as digits as its factorization.

11440331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634340.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 11440331 is about 3382.3558358044. The cubic root of 11440331 is about 225.3268073944.

Adding to 11440331 its reverse (13304411), we get a palindrome (24744742).

The spelling of 11440331 in words is "eleven million, four hundred forty thousand, three hundred thirty-one".