444090866 has 4 divisors (see below), whose sum is σ = 666136302. Its totient is φ = 222045432.

The previous prime is 444090851. The next prime is 444090883. The reversal of 444090866 is 668090444.

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., 427042225 + 17048641 = 20665^2 + 4129^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111022715 + ... + 111022718.

Almost surely, 2^444090866 is an apocalyptic number.

444090866 is a deficient number, since it is larger than the sum of its proper divisors (222045436).

444090866 is a wasteful number, since it uses less digits than its factorization.

444090866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222045435.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 444090866 is about 21073.4635501618. The cubic root of 444090866 is about 762.9404015385.

The spelling of 444090866 in words is "four hundred forty-four million, ninety thousand, eight hundred sixty-six".