444418 has 8 divisors (see below), whose sum is σ = 717948. Its totient is φ = 205104.

The previous prime is 444403. The next prime is 444421. The reversal of 444418 is 814444.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 431649 + 12769 = 657^2 + 113^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 444392 and 444401.

It is an unprimeable number.

444418 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8521 + ... + 8572.

2⁴⁴⁴⁴¹⁸ is an apocalyptic number.

444418 is a deficient number, since it is larger than the sum of its proper divisors (273530).

444418 is a wasteful number, since it uses less digits than its factorization.

444418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17108.

The product of its digits is 2048, while the sum is 25.

The square root of 444418 is about 666.6468330383. The cubic root of 444418 is about 76.3127692403.

The spelling of 444418 in words is "four hundred forty-four thousand, four hundred eighteen".