444744681 has 8 divisors (see below), whose sum is σ = 593266944. Its totient is φ = 296359440.

The previous prime is 444744661. The next prime is 444744683. The reversal of 444744681 is 186447444.

It is a happy number.

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

It is not a de Polignac number, because 444744681 - 2¹⁵ = 444711913 is a prime.

It is a super-2 number, since 2×444744681² = 395595662555583522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (444744683) by changing a digit.

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, 26425 + ... + 39846.

It is an arithmetic number, because the mean of its divisors is an integer number (74158368).

Almost surely, 2^444744681 is an apocalyptic number.

It is an amenable number.

444744681 is a deficient number, since it is larger than the sum of its proper divisors (148522263).

444744681 is a wasteful number, since it uses less digits than its factorization.

444744681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68511.

The product of its digits is 344064, while the sum is 42.

The square root of 444744681 is about 21088.9706007666. The cubic root of 444744681 is about 763.3146322190.

The spelling of 444744681 in words is "four hundred forty-four million, seven hundred forty-four thousand, six hundred eighty-one".