40001342441 has 2 divisors, whose sum is σ = 40001342442. Its totient is φ = 40001342440.

The previous prime is 40001342399. The next prime is 40001342443. The reversal of 40001342441 is 14424310004.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32398200025 + 7603142416 = 179995^2 + 87196^2 .

It is a cyclic number.

It is not a de Polignac number, because 40001342441 - 2¹⁰ = 40001341417 is a prime.

Together with 40001342443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40001342443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20000671220 + 20000671221.

It is an arithmetic number, because the mean of its divisors is an integer number (20000671221).

Almost surely, 2^40001342441 is an apocalyptic number.

It is an amenable number.

40001342441 is a deficient number, since it is larger than the sum of its proper divisors (1).

40001342441 is an equidigital number, since it uses as much as digits as its factorization.

40001342441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 40001342441 its reverse (14424310004), we get a palindrome (54425652445).

The spelling of 40001342441 in words is "forty billion, one million, three hundred forty-two thousand, four hundred forty-one".