444550669 has 2 divisors, whose sum is σ = 444550670. Its totient is φ = 444550668.

The previous prime is 444550649. The next prime is 444550747. The reversal of 444550669 is 966055444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 418693444 + 25857225 = 20462^2 + 5085^2 .

It is a cyclic number.

It is not a de Polignac number, because 444550669 - 2⁵ = 444550637 is a prime.

It is a super-2 number, since 2×444550669² = 395250594616695122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444550609) 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, 222275334 + 222275335.

It is an arithmetic number, because the mean of its divisors is an integer number (222275335).

Almost surely, 2^444550669 is an apocalyptic number.

It is an amenable number.

444550669 is a deficient number, since it is larger than the sum of its proper divisors (1).

444550669 is an equidigital number, since it uses as much as digits as its factorization.

444550669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 43.

The square root of 444550669 is about 21084.3702538160. The cubic root of 444550669 is about 763.2036219066.

The spelling of 444550669 in words is "four hundred forty-four million, five hundred fifty thousand, six hundred sixty-nine".