404344443469 has 2 divisors, whose sum is σ = 404344443470. Its totient is φ = 404344443468.

The previous prime is 404344443463. The next prime is 404344443473. The reversal of 404344443469 is 964344443404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328959602500 + 75384840969 = 573550^2 + 274563^2 .

It is a cyclic number.

It is not a de Polignac number, because 404344443469 - 2¹⁷ = 404344312397 is a prime.

It is a super-2 number, since 2×404344443469² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404344443463) 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, 202172221734 + 202172221735.

It is an arithmetic number, because the mean of its divisors is an integer number (202172221735).

Almost surely, 2^404344443469 is an apocalyptic number.

It is an amenable number.

404344443469 is a deficient number, since it is larger than the sum of its proper divisors (1).

404344443469 is an equidigital number, since it uses as much as digits as its factorization.

404344443469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7962624, while the sum is 49.

The spelling of 404344443469 in words is "four hundred four billion, three hundred forty-four million, four hundred forty-three thousand, four hundred sixty-nine".