9904444019 has 2 divisors, whose sum is σ = 9904444020. Its totient is φ = 9904444018.

The previous prime is 9904444007. The next prime is 9904444061. The reversal of 9904444019 is 9104444099.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9904444019 - 2²⁰ = 9903395443 is a prime.

It is a super-2 number, since 2×9904444019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9904443019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4952222009 + 4952222010.

It is an arithmetic number, because the mean of its divisors is an integer number (4952222010).

Almost surely, 2^9904444019 is an apocalyptic number.

9904444019 is a deficient number, since it is larger than the sum of its proper divisors (1).

9904444019 is an equidigital number, since it uses as much as digits as its factorization.

9904444019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 9904444019 is about 99521.0732407966. The cubic root of 9904444019 is about 2147.5504114351.

The spelling of 9904444019 in words is "nine billion, nine hundred four million, four hundred forty-four thousand, nineteen".