40343402401 has 2 divisors, whose sum is σ = 40343402402. Its totient is φ = 40343402400.

The previous prime is 40343402377. The next prime is 40343402413. The reversal of 40343402401 is 10420434304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37318512400 + 3024890001 = 193180^2 + 54999^2 .

It is a cyclic number.

It is not a de Polignac number, because 40343402401 - 2⁵ = 40343402369 is a prime.

It is not a weakly prime, because it can be changed into another prime (40343409401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20171701200 + 20171701201.

It is an arithmetic number, because the mean of its divisors is an integer number (20171701201).

Almost surely, 2^40343402401 is an apocalyptic number.

It is an amenable number.

40343402401 is a deficient number, since it is larger than the sum of its proper divisors (1).

40343402401 is an equidigital number, since it uses as much as digits as its factorization.

40343402401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40343402401 its reverse (10420434304), we get a palindrome (50763836705).

The spelling of 40343402401 in words is "forty billion, three hundred forty-three million, four hundred two thousand, four hundred one".