445886660 has 24 divisors (see below), whose sum is σ = 941976000. Its totient is φ = 177285344.

The previous prime is 445886657. The next prime is 445886681. The reversal of 445886660 is 66688544.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 63410 + ... + 70089.

It is an arithmetic number, because the mean of its divisors is an integer number (39249000).

Almost surely, 2^445886660 is an apocalyptic number.

It is an amenable number.

445886660 is an abundant number, since it is smaller than the sum of its proper divisors (496089340).

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

445886660 is a wasteful number, since it uses less digits than its factorization.

445886660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133675 (or 133673 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 47.

The square root of 445886660 is about 21116.0285091681. The cubic root of 445886660 is about 763.9673994477.

The spelling of 445886660 in words is "four hundred forty-five million, eight hundred eighty-six thousand, six hundred sixty".