404144014243 has 2 divisors, whose sum is σ = 404144014244. Its totient is φ = 404144014242.

The previous prime is 404144014237. The next prime is 404144014279. The reversal of 404144014243 is 342410441404.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404144014243 is a prime.

It is not a weakly prime, because it can be changed into another prime (404144014283) 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, 202072007121 + 202072007122.

It is an arithmetic number, because the mean of its divisors is an integer number (202072007122).

Almost surely, 2^404144014243 is an apocalyptic number.

404144014243 is a deficient number, since it is larger than the sum of its proper divisors (1).

404144014243 is an equidigital number, since it uses as much as digits as its factorization.

404144014243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 404144014243 its reverse (342410441404), we get a palindrome (746554455647).

The spelling of 404144014243 in words is "four hundred four billion, one hundred forty-four million, fourteen thousand, two hundred forty-three".