444628 has 12 divisors (see below), whose sum is σ = 805140. Its totient is φ = 214592.

The previous prime is 444623. The next prime is 444637. The reversal of 444628 is 826444.

It can be written as a sum of positive squares in 2 ways, for example, as 161604 + 283024 = 402^2 + 532^2 .

It is a junction number, because it is equal to n+sod(n) for n = 444596 and 444605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1801 + ... + 2032.

It is an arithmetic number, because the mean of its divisors is an integer number (67095).

2⁴⁴⁴⁶²⁸ is an apocalyptic number.

It is an amenable number.

444628 is a deficient number, since it is larger than the sum of its proper divisors (360512).

444628 is a wasteful number, since it uses less digits than its factorization.

444628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866 (or 3864 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

The square root of 444628 is about 666.8043191222. The cubic root of 444628 is about 76.3247873238.

The spelling of 444628 in words is "four hundred forty-four thousand, six hundred twenty-eight".