447275808 has 144 divisors (see below), whose sum is σ = 1530285120. Its totient is φ = 121056768.

The previous prime is 447275753. The next prime is 447275879. The reversal of 447275808 is 808572744.

447275808 is a `hidden beast` number, since 4 + 47 + 27 + 580 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32466 + ... + 44142.

It is an arithmetic number, because the mean of its divisors is an integer number (10626980).

Almost surely, 2^447275808 is an apocalyptic number.

447275808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447275808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765142560).

447275808 is an abundant number, since it is smaller than the sum of its proper divisors (1083009312).

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

447275808 is a wasteful number, since it uses less digits than its factorization.

447275808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11719 (or 11708 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The square root of 447275808 is about 21148.8961414065. The cubic root of 447275808 is about 764.7599503137.

The spelling of 447275808 in words is "four hundred forty-seven million, two hundred seventy-five thousand, eight hundred eight".