448671564 has 36 divisors (see below), whose sum is σ = 1237246920. Its totient is φ = 135960960.

The previous prime is 448671551. The next prime is 448671607. The reversal of 448671564 is 465176844.

448671564 is a `hidden beast` number, since 4 + 4 + 86 + 7 + 1 + 564 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 566109 + ... + 566900.

It is an arithmetic number, because the mean of its divisors is an integer number (34367970).

Almost surely, 2^448671564 is an apocalyptic number.

448671564 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

448671564 is an abundant number, since it is smaller than the sum of its proper divisors (788575356).

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

448671564 is a wasteful number, since it uses less digits than its factorization.

448671564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133030 (or 1133025 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 448671564 is about 21181.8687560848. The cubic root of 448671564 is about 765.5546202339.

The spelling of 448671564 in words is "four hundred forty-eight million, six hundred seventy-one thousand, five hundred sixty-four".