447689382 has 96 divisors (see below), whose sum is σ = 1075576320. Its totient is φ = 123802560.

The previous prime is 447689353. The next prime is 447689447. The reversal of 447689382 is 283986744.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2473332 + ... + 2473512.

It is an arithmetic number, because the mean of its divisors is an integer number (11203920).

Almost surely, 2^447689382 is an apocalyptic number.

447689382 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 447689382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537788160).

447689382 is an abundant number, since it is smaller than the sum of its proper divisors (627886938).

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

447689382 is a wasteful number, since it uses less digits than its factorization.

447689382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 419 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 447689382 is about 21158.6715556530. The cubic root of 447689382 is about 764.9955897050.

The spelling of 447689382 in words is "four hundred forty-seven million, six hundred eighty-nine thousand, three hundred eighty-two".