4445421200 has 120 divisors (see below), whose sum is σ = 11711899200. Its totient is φ = 1608076800.

The previous prime is 4445421199. The next prime is 4445421247. The reversal of 4445421200 is 21245444.

It is a self number, because there is not a number n which added to its sum of digits gives 4445421200.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 873062 + ... + 878138.

It is an arithmetic number, because the mean of its divisors is an integer number (97599160).

Almost surely, 2^4445421200 is an apocalyptic number.

4445421200 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 4445421200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5855949600).

4445421200 is an abundant number, since it is smaller than the sum of its proper divisors (7266478000).

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

4445421200 is a wasteful number, since it uses less digits than its factorization.

4445421200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305 (or 5294 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 4445421200 is about 66673.9919308871. The cubic root of 4445421200 is about 1644.2618183819.

Adding to 4445421200 its reverse (21245444), we get a palindrome (4466666644).

The spelling of 4445421200 in words is "four billion, four hundred forty-five million, four hundred twenty-one thousand, two hundred".