444406 has 8 divisors (see below), whose sum is σ = 695664. Its totient is φ = 212520.

The previous prime is 444403. The next prime is 444421. The reversal of 444406 is 604444.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4785 + ... + 4876.

It is an arithmetic number, because the mean of its divisors is an integer number (86958).

2⁴⁴⁴⁴⁰⁶ is an apocalyptic number.

444406 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

444406 is a deficient number, since it is larger than the sum of its proper divisors (251258).

444406 is a wasteful number, since it uses less digits than its factorization.

444406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9686.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 444406 is about 666.6378327098. The cubic root of 444406 is about 76.3120823783.

The spelling of 444406 in words is "four hundred forty-four thousand, four hundred six".