20224424144 has 40 divisors (see below), whose sum is σ = 42669516000. Its totient is φ = 9249641856.

The previous prime is 20224424111. The next prime is 20224424161. The reversal of 20224424144 is 44142442202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 1138214 + ... + 1155845.

It is an arithmetic number, because the mean of its divisors is an integer number (1066737900).

Almost surely, 2^20224424144 is an apocalyptic number.

It is an amenable number.

20224424144 is an abundant number, since it is smaller than the sum of its proper divisors (22445091856).

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

20224424144 is a wasteful number, since it uses less digits than its factorization.

20224424144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294115 (or 2294109 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 20224424144 its reverse (44142442202), we get a palindrome (64366866346).

The spelling of 20224424144 in words is "twenty billion, two hundred twenty-four million, four hundred twenty-four thousand, one hundred forty-four".