444321669 has 16 divisors (see below), whose sum is σ = 680302080. Its totient is φ = 255112560.

The previous prime is 444321629. The next prime is 444321671. The reversal of 444321669 is 966123444.

It is not a de Polignac number, because 444321669 - 2⁷ = 444321541 is a prime.

It is a super-2 number, since 2×444321669² = 394843491085891122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444321629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353697 + ... + 354950.

It is an arithmetic number, because the mean of its divisors is an integer number (42518880).

Almost surely, 2^444321669 is an apocalyptic number.

It is an amenable number.

444321669 is a deficient number, since it is larger than the sum of its proper divisors (235980411).

444321669 is a wasteful number, since it uses less digits than its factorization.

444321669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708680.

The product of its digits is 124416, while the sum is 39.

The square root of 444321669 is about 21078.9389913250. The cubic root of 444321669 is about 763.0725504972.

The spelling of 444321669 in words is "four hundred forty-four million, three hundred twenty-one thousand, six hundred sixty-nine".