447220660 has 48 divisors (see below), whose sum is σ = 949536000. Its totient is φ = 176926464.

The previous prime is 447220643. The next prime is 447220673. The reversal of 447220660 is 66022744.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1245561 + ... + 1245919.

It is an arithmetic number, because the mean of its divisors is an integer number (19782000).

Almost surely, 2^447220660 is an apocalyptic number.

It is an amenable number.

447220660 is an abundant number, since it is smaller than the sum of its proper divisors (502315340).

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

447220660 is a wasteful number, since it uses less digits than its factorization.

447220660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 447220660 is about 21147.5922979426. The cubic root of 447220660 is about 764.7285180189.

The spelling of 447220660 in words is "four hundred forty-seven million, two hundred twenty thousand, six hundred sixty".