445384688 has 80 divisors (see below), whose sum is σ = 1045837824. Its totient is φ = 179677440.

The previous prime is 445384661. The next prime is 445384739. The reversal of 445384688 is 886483544.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 126731 + ... + 130197.

Almost surely, 2^445384688 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 445384688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522918912).

445384688 is an abundant number, since it is smaller than the sum of its proper divisors (600453136).

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

445384688 is a wasteful number, since it uses less digits than its factorization.

445384688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3550 (or 3544 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 50.

The square root of 445384688 is about 21104.1391200873. The cubic root of 445384688 is about 763.6806044114.

The spelling of 445384688 in words is "four hundred forty-five million, three hundred eighty-four thousand, six hundred eighty-eight".