444386 has 4 divisors (see below), whose sum is σ = 666582. Its totient is φ = 222192.

The previous prime is 444349. The next prime is 444401. The reversal of 444386 is 683444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 398161 + 46225 = 631^2 + 215^2 .

It is a Curzon number.

It is an unprimeable number.

444386 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 111095 + ... + 111098.

2⁴⁴⁴³⁸⁶ is an apocalyptic number.

444386 is a deficient number, since it is larger than the sum of its proper divisors (222196).

444386 is a wasteful number, since it uses less digits than its factorization.

444386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222195.

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

The square root of 444386 is about 666.6228318922. The cubic root of 444386 is about 76.3109375809.

It can be divided in two parts, 44438 and 6, that added together give a palindrome (44444).

The spelling of 444386 in words is "four hundred forty-four thousand, three hundred eighty-six".