445800000 has 168 divisors, whose sum is σ = 1476280512. Its totient is φ = 118720000.

The previous prime is 445799989. The next prime is 445800001. The reversal of 445800000 is 8544.

It is a self number, because there is not a number n which added to its sum of digits gives 445800000.

It is not an unprimeable number, because it can be changed into a prime (445800001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 599629 + ... + 600371.

It is an arithmetic number, because the mean of its divisors is an integer number (8787384).

Almost surely, 2^445800000 is an apocalyptic number.

445800000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (738140256).

445800000 is an abundant number, since it is smaller than the sum of its proper divisors (1030480512).

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

445800000 is an frugal number, since it uses more digits than its factorization.

445800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 445800000 is about 21113.9764137407. The cubic root of 445800000 is about 763.9179027853.

Adding to 445800000 its reverse (8544), we get a palindrome (445808544).

The spelling of 445800000 in words is "four hundred forty-five million, eight hundred thousand".