444409985 has 8 divisors (see below), whose sum is σ = 533433600. Its totient is φ = 355433584.

The previous prime is 444409963. The next prime is 444409991. The reversal of 444409985 is 589904444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 444409985 - 2⁸ = 444409729 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14066 + ... + 32964.

It is an arithmetic number, because the mean of its divisors is an integer number (66679200).

Almost surely, 2^444409985 is an apocalyptic number.

It is an amenable number.

444409985 is a deficient number, since it is larger than the sum of its proper divisors (89023615).

444409985 is a wasteful number, since it uses less digits than its factorization.

444409985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23607.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 444409985 is about 21081.0337744618. The cubic root of 444409985 is about 763.1231047507.

The spelling of 444409985 in words is "four hundred forty-four million, four hundred nine thousand, nine hundred eighty-five".