444551020 has 48 divisors (see below), whose sum is σ = 1002068928. Its totient is φ = 165058560.

The previous prime is 444551011. The next prime is 444551021. The reversal of 444551020 is 20155444.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (444551021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15865 + ... + 33775.

It is an arithmetic number, because the mean of its divisors is an integer number (20876436).

Almost surely, 2^444551020 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 444551020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501034464).

444551020 is an abundant number, since it is smaller than the sum of its proper divisors (557517908).

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

444551020 is a wasteful number, since it uses less digits than its factorization.

444551020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18010 (or 18008 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 444551020 is about 21084.3785775156. The cubic root of 444551020 is about 763.2038227719.

The spelling of 444551020 in words is "four hundred forty-four million, five hundred fifty-one thousand, twenty".