445871860 has 48 divisors (see below), whose sum is σ = 1126419840. Its totient is φ = 144823680.

The previous prime is 445871851. The next prime is 445871861. The reversal of 445871860 is 68178544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445871861) 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 15 ways as a sum of consecutive naturals, for example, 81151 + ... + 86470.

It is an arithmetic number, because the mean of its divisors is an integer number (23467080).

Almost surely, 2^445871860 is an apocalyptic number.

It is an amenable number.

445871860 is an abundant number, since it is smaller than the sum of its proper divisors (680547980).

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

445871860 is a wasteful number, since it uses less digits than its factorization.

445871860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167656 (or 167654 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 445871860 is about 21115.6780615731. The cubic root of 445871860 is about 763.9589467447.

The spelling of 445871860 in words is "four hundred forty-five million, eight hundred seventy-one thousand, eight hundred sixty".