40193443 has 4 divisors (see below), whose sum is σ = 41941008. Its totient is φ = 38445880.

The previous prime is 40193431. The next prime is 40193477. The reversal of 40193443 is 34439104.

40193443 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 40193443 - 2⁵ = 40193411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40193843) 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, 873748 + ... + 873793.

It is an arithmetic number, because the mean of its divisors is an integer number (10485252).

Almost surely, 2^40193443 is an apocalyptic number.

40193443 is a deficient number, since it is larger than the sum of its proper divisors (1747565).

40193443 is a wasteful number, since it uses less digits than its factorization.

40193443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747564.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 40193443 is about 6339.8298873077. The cubic root of 40193443 is about 342.5456077934.

The spelling of 40193443 in words is "forty million, one hundred ninety-three thousand, four hundred forty-three".