40206444343 has 4 divisors (see below), whose sum is σ = 43299247768. Its totient is φ = 37113640920.

The previous prime is 40206444301. The next prime is 40206444353. The reversal of 40206444343 is 34344460204.

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 40206444343 - 2⁹ = 40206443831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40206444299 and 40206444308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40206444353) 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, 1546401693 + ... + 1546401718.

It is an arithmetic number, because the mean of its divisors is an integer number (10824811942).

Almost surely, 2^40206444343 is an apocalyptic number.

40206444343 is a deficient number, since it is larger than the sum of its proper divisors (3092803425).

40206444343 is a wasteful number, since it uses less digits than its factorization.

40206444343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092803424.

The product of its (nonzero) digits is 110592, while the sum is 34.

The spelling of 40206444343 in words is "forty billion, two hundred six million, four hundred forty-four thousand, three hundred forty-three".