444426163 has 2 divisors, whose sum is σ = 444426164. Its totient is φ = 444426162.

The previous prime is 444426139. The next prime is 444426167. The reversal of 444426163 is 361624444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444426163 - 2⁹ = 444425651 is a prime.

It is a super-2 number, since 2×444426163² = 395029228717805138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (444426167) 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 as a sum of consecutive naturals, namely, 222213081 + 222213082.

It is an arithmetic number, because the mean of its divisors is an integer number (222213082).

Almost surely, 2^444426163 is an apocalyptic number.

444426163 is a deficient number, since it is larger than the sum of its proper divisors (1).

444426163 is an equidigital number, since it uses as much as digits as its factorization.

444426163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 34.

The square root of 444426163 is about 21081.4174808052. The cubic root of 444426163 is about 763.1323647105.

It can be divided in two parts, 44442 and 6163, that added together give a palindrome (50605).

The spelling of 444426163 in words is "four hundred forty-four million, four hundred twenty-six thousand, one hundred sixty-three".