3944442193 has 2 divisors, whose sum is σ = 3944442194. Its totient is φ = 3944442192.

The previous prime is 3944442169. The next prime is 3944442209. The reversal of 3944442193 is 3912444493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3433139649 + 511302544 = 58593^2 + 22612^2 .

It is a cyclic number.

It is not a de Polignac number, because 3944442193 - 2¹³ = 3944434001 is a prime.

It is not a weakly prime, because it can be changed into another prime (3944442793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1972221096 + 1972221097.

It is an arithmetic number, because the mean of its divisors is an integer number (1972221097).

Almost surely, 2^3944442193 is an apocalyptic number.

It is an amenable number.

3944442193 is a deficient number, since it is larger than the sum of its proper divisors (1).

3944442193 is an equidigital number, since it uses as much as digits as its factorization.

3944442193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 43.

The square root of 3944442193 is about 62804.7943472471. The cubic root of 3944442193 is about 1580.0173839085.

The spelling of 3944442193 in words is "three billion, nine hundred forty-four million, four hundred forty-two thousand, one hundred ninety-three".