400004342341 has 2 divisors, whose sum is σ = 400004342342. Its totient is φ = 400004342340.

The previous prime is 400004342329. The next prime is 400004342407. The reversal of 400004342341 is 143243400004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366201681316 + 33802661025 = 605146^2 + 183855^2 .

It is a cyclic number.

It is not a de Polignac number, because 400004342341 - 2¹¹ = 400004340293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400004142341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200002171170 + 200002171171.

It is an arithmetic number, because the mean of its divisors is an integer number (200002171171).

Almost surely, 2^400004342341 is an apocalyptic number.

It is an amenable number.

400004342341 is a deficient number, since it is larger than the sum of its proper divisors (1).

400004342341 is an equidigital number, since it uses as much as digits as its factorization.

400004342341 is an evil number, because the sum of its binary digits is even.

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

Adding to 400004342341 its reverse (143243400004), we get a palindrome (543247742345).

The spelling of 400004342341 in words is "four hundred billion, four million, three hundred forty-two thousand, three hundred forty-one".