40243042241 has 4 divisors (see below), whose sum is σ = 40399630212. Its totient is φ = 40086454272.

The previous prime is 40243042237. The next prime is 40243042289. The reversal of 40243042241 is 14224034204.

It is a happy number.

40243042241 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 can be written as a sum of positive squares in 2 ways, for example, as 40038409216 + 204633025 = 200096^2 + 14305^2 .

It is a cyclic number.

It is not a de Polignac number, because 40243042241 - 2² = 40243042237 is a prime.

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 40243042241.

It is not an unprimeable number, because it can be changed into a prime (40243062241) 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, 78293600 + ... + 78294113.

It is an arithmetic number, because the mean of its divisors is an integer number (10099907553).

Almost surely, 2^40243042241 is an apocalyptic number.

It is an amenable number.

40243042241 is a deficient number, since it is larger than the sum of its proper divisors (156587971).

40243042241 is a wasteful number, since it uses less digits than its factorization.

40243042241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156587970.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 40243042241 its reverse (14224034204), we get a palindrome (54467076445).

The spelling of 40243042241 in words is "forty billion, two hundred forty-three million, forty-two thousand, two hundred forty-one".