40943 has 4 divisors (see below), whose sum is σ = 46800. Its totient is φ = 35088.

The previous prime is 40939. The next prime is 40949. The reversal of 40943 is 34904.

40943 is nontrivially palindromic in base 6.

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 40943 - 2² = 40939 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40949) 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, 2918 + ... + 2931.

It is an arithmetic number, because the mean of its divisors is an integer number (11700).

2⁴⁰⁹⁴³ is an apocalyptic number.

40943 is a deficient number, since it is larger than the sum of its proper divisors (5857).

40943 is an equidigital number, since it uses as much as digits as its factorization.

40943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5856.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 40943 is about 202.3437668919. The cubic root of 40943 is about 34.4661854496.

The spelling of 40943 in words is "forty thousand, nine hundred forty-three".