444201409 has 2 divisors, whose sum is σ = 444201410. Its totient is φ = 444201408.

The previous prime is 444201389. The next prime is 444201431. The reversal of 444201409 is 904102444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 444029184 + 172225 = 21072^2 + 415^2 .

It is a cyclic number.

It is not a de Polignac number, because 444201409 - 2⁷ = 444201281 is a prime.

It is equal to p_23561911 and since 444201409 and 23561911 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (444201469) 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, 222100704 + 222100705.

It is an arithmetic number, because the mean of its divisors is an integer number (222100705).

Almost surely, 2^444201409 is an apocalyptic number.

It is an amenable number.

444201409 is a deficient number, since it is larger than the sum of its proper divisors (1).

444201409 is an equidigital number, since it uses as much as digits as its factorization.

444201409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 444201409 is about 21076.0861879050. The cubic root of 444201409 is about 763.0036999386.

The spelling of 444201409 in words is "four hundred forty-four million, two hundred one thousand, four hundred nine".