20244442000 has 40 divisors (see below), whose sum is σ = 48951065592. Its totient is φ = 8097776000.

The previous prime is 20244441991. The next prime is 20244442007. The reversal of 20244442000 is 24444202.

It can be written as a sum of positive squares in 4 ways, for example, as 578306304 + 19666135696 = 24048^2 + 140236^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (20244442007) by changing a digit.

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, 5059111 + ... + 5063110.

Almost surely, 2^20244442000 is an apocalyptic number.

20244442000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20244442000 is an abundant number, since it is smaller than the sum of its proper divisors (28706623592).

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

20244442000 is a wasteful number, since it uses less digits than its factorization.

20244442000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122244 (or 10122228 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20244442000 its reverse (24444202), we get a palindrome (20268886202).

The spelling of 20244442000 in words is "twenty billion, two hundred forty-four million, four hundred forty-two thousand".