444410081 has 2 divisors, whose sum is σ = 444410082. Its totient is φ = 444410080.

The previous prime is 444410041. The next prime is 444410089. The reversal of 444410081 is 180014444.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444366400 + 43681 = 21080^2 + 209^2 .

It is a cyclic number.

It is not a de Polignac number, because 444410081 - 2¹⁸ = 444147937 is a prime.

It is a super-2 number, since 2×444410081² = 395000640188853122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 444410081.

It is not a weakly prime, because it can be changed into another prime (444410089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222205040 + 222205041.

It is an arithmetic number, because the mean of its divisors is an integer number (222205041).

Almost surely, 2^444410081 is an apocalyptic number.

It is an amenable number.

444410081 is a deficient number, since it is larger than the sum of its proper divisors (1).

444410081 is an equidigital number, since it uses as much as digits as its factorization.

444410081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 444410081 is about 21081.0360513899. The cubic root of 444410081 is about 763.1231596998.

The spelling of 444410081 in words is "four hundred forty-four million, four hundred ten thousand, eighty-one".