9444442019 has 2 divisors, whose sum is σ = 9444442020. Its totient is φ = 9444442018.

The previous prime is 9444442001. The next prime is 9444442031. The reversal of 9444442019 is 9102444449.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9444442019 is a prime.

It is a super-2 number, since 2×9444442019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9444442099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4722221009 + 4722221010.

It is an arithmetic number, because the mean of its divisors is an integer number (4722221010).

Almost surely, 2^9444442019 is an apocalyptic number.

9444442019 is a deficient number, since it is larger than the sum of its proper divisors (1).

9444442019 is an equidigital number, since it uses as much as digits as its factorization.

9444442019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 9444442019 is about 97182.5191019455. The cubic root of 9444442019 is about 2113.7750541809.

The spelling of 9444442019 in words is "nine billion, four hundred forty-four million, four hundred forty-two thousand, nineteen".