11440731 has 4 divisors (see below), whose sum is σ = 15254312. Its totient is φ = 7627152.

The previous prime is 11440699. The next prime is 11440753. The reversal of 11440731 is 13704411.

11440731 is digitally balanced in base 3, 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 11440731 - 2⁵ = 11440699 is a prime.

It is a super-3 number, since 3×11440731³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11440698 and 11440707.

It is not an unprimeable number, because it can be changed into a prime (11447731) 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 3 ways as a sum of consecutive naturals, for example, 1906786 + ... + 1906791.

It is an arithmetic number, because the mean of its divisors is an integer number (3813578).

Almost surely, 2^11440731 is an apocalyptic number.

11440731 is a deficient number, since it is larger than the sum of its proper divisors (3813581).

11440731 is an equidigital number, since it uses as much as digits as its factorization.

11440731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813580.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 11440731 is about 3382.4149656717. The cubic root of 11440731 is about 225.3294334744.

The spelling of 11440731 in words is "eleven million, four hundred forty thousand, seven hundred thirty-one".