404040444419 has 2 divisors, whose sum is σ = 404040444420. Its totient is φ = 404040444418.

The previous prime is 404040444397. The next prime is 404040444421. The reversal of 404040444419 is 914444040404.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404040444419 is a prime.

It is a super-2 number, since 2×404040444419² (a number of 24 digits) contains 22 as substring.

Together with 404040444421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (404040444499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202020222209 + 202020222210.

It is an arithmetic number, because the mean of its divisors is an integer number (202020222210).

Almost surely, 2^404040444419 is an apocalyptic number.

404040444419 is a deficient number, since it is larger than the sum of its proper divisors (1).

404040444419 is an equidigital number, since it uses as much as digits as its factorization.

404040444419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 147456, while the sum is 38.

The spelling of 404040444419 in words is "four hundred four billion, forty million, four hundred forty-four thousand, four hundred nineteen".