20420002244 has 12 divisors (see below), whose sum is σ = 35767409664. Its totient is φ = 10200742344.

The previous prime is 20420002237. The next prime is 20420002271. The reversal of 20420002244 is 44220002402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2309732 + ... + 2318555.

It is an arithmetic number, because the mean of its divisors is an integer number (2980617472).

Almost surely, 2^20420002244 is an apocalyptic number.

It is an amenable number.

20420002244 is a deficient number, since it is larger than the sum of its proper divisors (15347407420).

20420002244 is a wasteful number, since it uses less digits than its factorization.

20420002244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4629394 (or 4629392 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20420002244 its reverse (44220002402), we get a palindrome (64640004646).

The spelling of 20420002244 in words is "twenty billion, four hundred twenty million, two thousand, two hundred forty-four".