447878208 has 56 divisors (see below), whose sum is σ = 1193730912. Its totient is φ = 148194304.

The previous prime is 447878201. The next prime is 447878213. The reversal of 447878208 is 802878744.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (447878201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17791 + ... + 34817.

Almost surely, 2^447878208 is an apocalyptic number.

447878208 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 447878208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596865456).

447878208 is an abundant number, since it is smaller than the sum of its proper divisors (745852704).

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

447878208 is a wasteful number, since it uses less digits than its factorization.

447878208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17179 (or 17169 counting only the distinct ones).

The product of its (nonzero) digits is 802816, while the sum is 48.

The square root of 447878208 is about 21163.1332273839. The cubic root of 447878208 is about 765.1031276238.

The spelling of 447878208 in words is "four hundred forty-seven million, eight hundred seventy-eight thousand, two hundred eight".