20002444244 has 24 divisors (see below), whose sum is σ = 35123955048. Its totient is φ = 9967063040.

The previous prime is 20002444229. The next prime is 20002444279. The reversal of 20002444244 is 44244420002.

It can be written as a sum of positive squares in 4 ways, for example, as 6992304400 + 13010139844 = 83620^2 + 114062^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3409874 + ... + 3415734.

It is an arithmetic number, because the mean of its divisors is an integer number (1463498127).

Almost surely, 2^20002444244 is an apocalyptic number.

It is an amenable number.

20002444244 is a deficient number, since it is larger than the sum of its proper divisors (15121510804).

20002444244 is a wasteful number, since it uses less digits than its factorization.

20002444244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8635 (or 8633 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20002444244 its reverse (44244420002), we get a palindrome (64246864246).

The spelling of 20002444244 in words is "twenty billion, two million, four hundred forty-four thousand, two hundred forty-four".