444434161 has 2 divisors, whose sum is σ = 444434162. Its totient is φ = 444434160.

The previous prime is 444434141. The next prime is 444434173. The reversal of 444434161 is 161434444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444408561 + 25600 = 21081^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 444434161 - 2¹¹ = 444432113 is a prime.

It is not a weakly prime, because it can be changed into another prime (444434101) 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, 222217080 + 222217081.

It is an arithmetic number, because the mean of its divisors is an integer number (222217081).

Almost surely, 2^444434161 is an apocalyptic number.

It is an amenable number.

444434161 is a deficient number, since it is larger than the sum of its proper divisors (1).

444434161 is an equidigital number, since it uses as much as digits as its factorization.

444434161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 31.

The square root of 444434161 is about 21081.6071730786. The cubic root of 444434161 is about 763.1369425208.

The spelling of 444434161 in words is "four hundred forty-four million, four hundred thirty-four thousand, one hundred sixty-one".