444782668 has 24 divisors (see below), whose sum is σ = 876524544. Its totient is φ = 195651600.

The previous prime is 444782633. The next prime is 444782677. The reversal of 444782668 is 866287444.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161680 + ... + 164407.

It is an arithmetic number, because the mean of its divisors is an integer number (36521856).

Almost surely, 2^444782668 is an apocalyptic number.

It is an amenable number.

444782668 is a deficient number, since it is larger than the sum of its proper divisors (431741876).

444782668 is a wasteful number, since it uses less digits than its factorization.

444782668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326133 (or 326131 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 49.

The square root of 444782668 is about 21089.8712181938. The cubic root of 444782668 is about 763.3363639441.

The spelling of 444782668 in words is "four hundred forty-four million, seven hundred eighty-two thousand, six hundred sixty-eight".