404400241919 has 2 divisors, whose sum is σ = 404400241920. Its totient is φ = 404400241918.

The previous prime is 404400241907. The next prime is 404400241957. The reversal of 404400241919 is 919142004404.

It is an a-pointer prime, because the next prime (404400241957) can be obtained adding 404400241919 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404400241919 - 2²⁰ = 404399193343 is a prime.

It is a super-2 number, since 2×404400241919² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404400241519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202200120959 + 202200120960.

It is an arithmetic number, because the mean of its divisors is an integer number (202200120960).

Almost surely, 2^404400241919 is an apocalyptic number.

404400241919 is a deficient number, since it is larger than the sum of its proper divisors (1).

404400241919 is an equidigital number, since it uses as much as digits as its factorization.

404400241919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 404400241919 in words is "four hundred four billion, four hundred million, two hundred forty-one thousand, nine hundred nineteen".