11840943 has 4 divisors (see below), whose sum is σ = 15787928. Its totient is φ = 7893960.

The previous prime is 11840911. The next prime is 11840951. The reversal of 11840943 is 34904811.

It is a happy number.

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

It is not a de Polignac number, because 11840943 - 2⁵ = 11840911 is a prime.

It is a super-2 number, since 2×11840943² = 280415862258498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11840943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11840963) 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, 1973488 + ... + 1973493.

It is an arithmetic number, because the mean of its divisors is an integer number (3946982).

Almost surely, 2^11840943 is an apocalyptic number.

11840943 is a deficient number, since it is larger than the sum of its proper divisors (3946985).

11840943 is an equidigital number, since it uses as much as digits as its factorization.

11840943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946984.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 11840943 is about 3441.0671309929. The cubic root of 11840943 is about 227.9268193886.

The spelling of 11840943 in words is "eleven million, eight hundred forty thousand, nine hundred forty-three".