20144234424 has 32 divisors (see below), whose sum is σ = 51531765120. Its totient is φ = 6558587616.

The previous prime is 20144234419. The next prime is 20144234449. The reversal of 20144234424 is 42443244102.

It is a super-2 number, since 2×20144234424² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20144234391 and 20144234400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9758772 + ... + 9760835.

It is an arithmetic number, because the mean of its divisors is an integer number (1610367660).

Almost surely, 2^20144234424 is an apocalyptic number.

20144234424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20144234424 is an abundant number, since it is smaller than the sum of its proper divisors (31387530696).

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

20144234424 is a wasteful number, since it uses less digits than its factorization.

20144234424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19519659 (or 19519655 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 20144234424 its reverse (42443244102), we get a palindrome (62587478526).

The spelling of 20144234424 in words is "twenty billion, one hundred forty-four million, two hundred thirty-four thousand, four hundred twenty-four".