20002420444 has 12 divisors (see below), whose sum is σ = 36211278600. Its totient is φ = 9656340848.

The previous prime is 20002420441. The next prime is 20002420469. The reversal of 20002420444 is 44402420002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002420441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86217214 + ... + 86217445.

It is an arithmetic number, because the mean of its divisors is an integer number (3017606550).

Almost surely, 2^20002420444 is an apocalyptic number.

It is an amenable number.

20002420444 is a deficient number, since it is larger than the sum of its proper divisors (16208858156).

20002420444 is a wasteful number, since it uses less digits than its factorization.

20002420444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172434692 (or 172434690 counting only the distinct ones).

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

Adding to 20002420444 its reverse (44402420002), we get a palindrome (64404840446).

The spelling of 20002420444 in words is "twenty billion, two million, four hundred twenty thousand, four hundred forty-four".