445886672 has 120 divisors (see below), whose sum is σ = 1106848800. Its totient is φ = 172058880.

The previous prime is 445886657. The next prime is 445886681. The reversal of 445886672 is 276688544.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 445886672.

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 23 ways as a sum of consecutive naturals, for example, 1284803 + ... + 1285149.

It is an arithmetic number, because the mean of its divisors is an integer number (9223740).

Almost surely, 2^445886672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445886672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553424400).

445886672 is an abundant number, since it is smaller than the sum of its proper divisors (660962128).

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

445886672 is a wasteful number, since it uses less digits than its factorization.

445886672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 516 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 50.

The square root of 445886672 is about 21116.0287933124. The cubic root of 445886672 is about 763.9674063012.

The spelling of 445886672 in words is "four hundred forty-five million, eight hundred eighty-six thousand, six hundred seventy-two".