20444404244 has 48 divisors (see below), whose sum is σ = 41491396800. Its totient is φ = 8716608000.

The previous prime is 20444404237. The next prime is 20444404249. The reversal of 20444404244 is 44240444402.

It is a self number, because there is not a number n which added to its sum of digits gives 20444404244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444404249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36629 + ... + 205500.

It is an arithmetic number, because the mean of its divisors is an integer number (864404100).

Almost surely, 2^20444404244 is an apocalyptic number.

It is an amenable number.

20444404244 is an abundant number, since it is smaller than the sum of its proper divisors (21046992556).

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

20444404244 is a wasteful number, since it uses less digits than its factorization.

20444404244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242264 (or 242262 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 20444404244 its reverse (44240444402), we get a palindrome (64684848646).

The spelling of 20444404244 in words is "twenty billion, four hundred forty-four million, four hundred four thousand, two hundred forty-four".