448988666 has 72 divisors (see below), whose sum is σ = 846671616. Its totient is φ = 177985920.

The previous prime is 448988629. The next prime is 448988689. The reversal of 448988666 is 666889844.

Its product of digits (15925248) is a multiple of the sum of its prime factors (324).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2350631 + ... + 2350821.

It is an arithmetic number, because the mean of its divisors is an integer number (11759328).

Almost surely, 2^448988666 is an apocalyptic number.

448988666 is a deficient number, since it is larger than the sum of its proper divisors (397682950).

448988666 is a wasteful number, since it uses less digits than its factorization.

448988666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 300 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 59.

The square root of 448988666 is about 21189.3526564640. The cubic root of 448988666 is about 765.7349315890.

The spelling of 448988666 in words is "four hundred forty-eight million, nine hundred eighty-eight thousand, six hundred sixty-six".