445171660 has 12 divisors (see below), whose sum is σ = 934860528. Its totient is φ = 178068656.

The previous prime is 445171637. The next prime is 445171723. The reversal of 445171660 is 66171544.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11129272 + ... + 11129311.

It is an arithmetic number, because the mean of its divisors is an integer number (77905044).

Almost surely, 2^445171660 is an apocalyptic number.

It is an amenable number.

445171660 is an abundant number, since it is smaller than the sum of its proper divisors (489688868).

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

445171660 is a wasteful number, since it uses less digits than its factorization.

445171660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22258592 (or 22258590 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 445171660 is about 21099.0914496336. The cubic root of 445171660 is about 763.5588285619.

The spelling of 445171660 in words is "four hundred forty-five million, one hundred seventy-one thousand, six hundred sixty".