444638 has 8 divisors (see below), whose sum is σ = 702120. Its totient is φ = 210600.

The previous prime is 444637. The next prime is 444641. The reversal of 444638 is 836444.

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

It is a self number, because there is not a number n which added to its sum of digits gives 444638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5813 + ... + 5888.

It is an arithmetic number, because the mean of its divisors is an integer number (87765).

2⁴⁴⁴⁶³⁸ is an apocalyptic number.

444638 is a deficient number, since it is larger than the sum of its proper divisors (257482).

444638 is a wasteful number, since it uses less digits than its factorization.

444638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11722.

The product of its digits is 9216, while the sum is 29.

The square root of 444638 is about 666.8118175318. The cubic root of 444638 is about 76.3253595191.

The spelling of 444638 in words is "four hundred forty-four thousand, six hundred thirty-eight".