448665816 has 16 divisors (see below), whose sum is σ = 1121664600. Its totient is φ = 149555264.

The previous prime is 448665809. The next prime is 448665817. The reversal of 448665816 is 618566844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448665817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9347181 + ... + 9347228.

Almost surely, 2^448665816 is an apocalyptic number.

It is an amenable number.

448665816 is an abundant number, since it is smaller than the sum of its proper divisors (672998784).

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

448665816 is a wasteful number, since it uses less digits than its factorization.

448665816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18694418 (or 18694414 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 48.

The square root of 448665816 is about 21181.7330735707. The cubic root of 448665816 is about 765.5513510075.

The spelling of 448665816 in words is "four hundred forty-eight million, six hundred sixty-five thousand, eight hundred sixteen".