404023340401 has 2 divisors, whose sum is σ = 404023340402. Its totient is φ = 404023340400.

The previous prime is 404023340351. The next prime is 404023340419. The reversal of 404023340401 is 104043320404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 404012784400 + 10556001 = 635620^2 + 3249^2 .

It is a cyclic number.

It is not a de Polignac number, because 404023340401 - 2¹¹ = 404023338353 is a prime.

It is not a weakly prime, because it can be changed into another prime (404023340701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202011670200 + 202011670201.

It is an arithmetic number, because the mean of its divisors is an integer number (202011670201).

Almost surely, 2^404023340401 is an apocalyptic number.

It is an amenable number.

404023340401 is a deficient number, since it is larger than the sum of its proper divisors (1).

404023340401 is an equidigital number, since it uses as much as digits as its factorization.

404023340401 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 404023340401 its reverse (104043320404), we get a palindrome (508066660805).

The spelling of 404023340401 in words is "four hundred four billion, twenty-three million, three hundred forty thousand, four hundred one".