447622720 has 56 divisors (see below), whose sum is σ = 1068165504. Its totient is φ = 178669056.

The previous prime is 447622663. The next prime is 447622723. The reversal of 447622720 is 27226744.

It is not an unprimeable number, because it can be changed into a prime (447622723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186649 + ... + 189031.

It is an arithmetic number, because the mean of its divisors is an integer number (19074384).

Almost surely, 2^447622720 is an apocalyptic number.

447622720 is a gapful number since it is divisible by the number (40) 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 447622720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534082752).

447622720 is an abundant number, since it is smaller than the sum of its proper divisors (620542784).

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

447622720 is a wasteful number, since it uses less digits than its factorization.

447622720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987 (or 2977 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 447622720 is about 21157.0962090737. The cubic root of 447622720 is about 764.9576179405.

The spelling of 447622720 in words is "four hundred forty-seven million, six hundred twenty-two thousand, seven hundred twenty".