20044244420 has 24 divisors (see below), whose sum is σ = 42095749248. Its totient is φ = 8017157600.

The previous prime is 20044244419. The next prime is 20044244449. The reversal of 20044244420 is 2444244002.

It is a super-2 number, since 2×20044244420² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20044244420.

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, 417875 + ... + 463365.

It is an arithmetic number, because the mean of its divisors is an integer number (1753989552).

Almost surely, 2^20044244420 is an apocalyptic number.

20044244420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20044244420 is an abundant number, since it is smaller than the sum of its proper divisors (22051504828).

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

20044244420 is a wasteful number, since it uses less digits than its factorization.

20044244420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67531 (or 67529 counting only the distinct ones).

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

Adding to 20044244420 its reverse (2444244002), we get a palindrome (22488488422).

It can be divided in two parts, 2004 and 4244420, that added together give a palindrome (4246424).

The spelling of 20044244420 in words is "twenty billion, forty-four million, two hundred forty-four thousand, four hundred twenty".