444894321 has 8 divisors (see below), whose sum is σ = 607660704. Its totient is φ = 289362080.

The previous prime is 444894311. The next prime is 444894323. The reversal of 444894321 is 123498444.

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 444894321 - 2¹⁹ = 444370033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444894321.

It is not an unprimeable number, because it can be changed into a prime (444894323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1808391 + ... + 1808636.

It is an arithmetic number, because the mean of its divisors is an integer number (75957588).

Almost surely, 2^444894321 is an apocalyptic number.

444894321 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

444894321 is a deficient number, since it is larger than the sum of its proper divisors (162766383).

444894321 is a wasteful number, since it uses less digits than its factorization.

444894321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617071.

The product of its digits is 110592, while the sum is 39.

The square root of 444894321 is about 21092.5181284739. The cubic root of 444894321 is about 763.4002315889.

The spelling of 444894321 in words is "four hundred forty-four million, eight hundred ninety-four thousand, three hundred twenty-one".