447446220 has 192 divisors, whose sum is σ = 1415715840. Its totient is φ = 104832000.

The previous prime is 447446201. The next prime is 447446221. The reversal of 447446220 is 22644744.

It is not an unprimeable number, because it can be changed into a prime (447446221) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 2963145 + ... + 2963295.

It is an arithmetic number, because the mean of its divisors is an integer number (7373520).

Almost surely, 2^447446220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447446220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707857920).

447446220 is an abundant number, since it is smaller than the sum of its proper divisors (968269620).

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

447446220 is a wasteful number, since it uses less digits than its factorization.

447446220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 33.

The square root of 447446220 is about 21152.9246204869. The cubic root of 447446220 is about 764.8570624480.

The spelling of 447446220 in words is "four hundred forty-seven million, four hundred forty-six thousand, two hundred twenty".