11440043 has 4 divisors (see below), whose sum is σ = 11460120. Its totient is φ = 11419968.

The previous prime is 11440027. The next prime is 11440057. The reversal of 11440043 is 34004411.

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

It is a cyclic number.

It is not a de Polignac number, because 11440043 - 2⁴ = 11440027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11440003) 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, 9158 + ... + 10331.

It is an arithmetic number, because the mean of its divisors is an integer number (2865030).

Almost surely, 2^11440043 is an apocalyptic number.

11440043 is a deficient number, since it is larger than the sum of its proper divisors (20077).

11440043 is an equidigital number, since it uses as much as digits as its factorization.

11440043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20076.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 11440043 is about 3382.3132616598. The cubic root of 11440043 is about 225.3249165789.

Adding to 11440043 its reverse (34004411), we get a palindrome (45444454).

The spelling of 11440043 in words is "eleven million, four hundred forty thousand, forty-three".