20444330000 has 100 divisors (see below), whose sum is σ = 49571731968. Its totient is φ = 8165520000.

The previous prime is 20444329991. The next prime is 20444330017. The reversal of 20444330000 is 3344402.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

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

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 19 ways as a sum of consecutive naturals, for example, 9908969 + ... + 9911031.

Almost surely, 2^20444330000 is an apocalyptic number.

20444330000 is a gapful number since it is divisible by the number (20) 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 20444330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24785865984).

20444330000 is an abundant number, since it is smaller than the sum of its proper divisors (29127401968).

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

20444330000 is an equidigital number, since it uses as much as digits as its factorization.

20444330000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082 (or 3061 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20444330000 its reverse (3344402), we get a palindrome (20447674402).

The spelling of 20444330000 in words is "twenty billion, four hundred forty-four million, three hundred thirty thousand".