20244440444 has 24 divisors (see below), whose sum is σ = 35946314208. Its totient is φ = 9974220480.

The previous prime is 20244440417. The next prime is 20244440471. The reversal of 20244440444 is 44404444202.

It is an interprime number because it is at equal distance from previous prime (20244440417) and next prime (20244440471).

It is a self number, because there is not a number n which added to its sum of digits gives 20244440444.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 530534 + ... + 567410.

It is an arithmetic number, because the mean of its divisors is an integer number (1497763092).

Almost surely, 2^20244440444 is an apocalyptic number.

It is an amenable number.

20244440444 is a deficient number, since it is larger than the sum of its proper divisors (15701873764).

20244440444 is a wasteful number, since it uses less digits than its factorization.

20244440444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38885 (or 38883 counting only the distinct ones).

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

Adding to 20244440444 its reverse (44404444202), we get a palindrome (64648884646).

The spelling of 20244440444 in words is "twenty billion, two hundred forty-four million, four hundred forty thousand, four hundred forty-four".