445043928 has 128 divisors (see below), whose sum is σ = 1337472000. Its totient is φ = 120654336.

The previous prime is 445043899. The next prime is 445043933. The reversal of 445043928 is 829340544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 575350 + ... + 576122.

It is an arithmetic number, because the mean of its divisors is an integer number (10449000).

Almost surely, 2^445043928 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 445043928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (668736000).

445043928 is an abundant number, since it is smaller than the sum of its proper divisors (892428072).

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

445043928 is a wasteful number, since it uses less digits than its factorization.

445043928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961 (or 957 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 445043928 is about 21096.0642774902. The cubic root of 445043928 is about 763.4857928960.

The spelling of 445043928 in words is "four hundred forty-five million, forty-three thousand, nine hundred twenty-eight".