4450020320 has 48 divisors (see below), whose sum is σ = 10521070560. Its totient is φ = 1778671104.

The previous prime is 4450020319. The next prime is 4450020347. The reversal of 4450020320 is 230200544.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4450020292 and 4450020301.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 218909 + ... + 238371.

It is an arithmetic number, because the mean of its divisors is an integer number (219188970).

Almost surely, 2^4450020320 is an apocalyptic number.

4450020320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4450020320 is an abundant number, since it is smaller than the sum of its proper divisors (6071050240).

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

4450020320 is a wasteful number, since it uses less digits than its factorization.

4450020320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20907 (or 20899 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 4450020320 is about 66708.4726252970. The cubic root of 4450020320 is about 1644.8286601351.

Adding to 4450020320 its reverse (230200544), we get a palindrome (4680220864).

The spelling of 4450020320 in words is "four billion, four hundred fifty million, twenty thousand, three hundred twenty".