444266166 has 8 divisors (see below), whose sum is σ = 888532344. Its totient is φ = 148088720.

The previous prime is 444266149. The next prime is 444266209. The reversal of 444266166 is 661662444.

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

444266166 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37022175 + ... + 37022186.

It is an arithmetic number, because the mean of its divisors is an integer number (111066543).

Almost surely, 2^444266166 is an apocalyptic number.

444266166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444266166 is a wasteful number, since it uses less digits than its factorization.

444266166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74044366.

The product of its digits is 165888, while the sum is 39.

The square root of 444266166 is about 21077.6223991227. The cubic root of 444266166 is about 763.0407757851.

The spelling of 444266166 in words is "four hundred forty-four million, two hundred sixty-six thousand, one hundred sixty-six".