444042191 has 8 divisors (see below), whose sum is σ = 446770560. Its totient is φ = 441321048.

The previous prime is 444042169. The next prime is 444042199. The reversal of 444042191 is 191240444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 444042191 - 2¹⁰ = 444041167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444042199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166430 + ... + 169076.

It is an arithmetic number, because the mean of its divisors is an integer number (55846320).

Almost surely, 2^444042191 is an apocalyptic number.

444042191 is a deficient number, since it is larger than the sum of its proper divisors (2728369).

444042191 is a wasteful number, since it uses less digits than its factorization.

444042191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 444042191 is about 21072.3086300481. The cubic root of 444042191 is about 762.9125262516.

The spelling of 444042191 in words is "four hundred forty-four million, forty-two thousand, one hundred ninety-one".