20144300424 has 64 divisors (see below), whose sum is σ = 51836073600. Its totient is φ = 6518859264.

The previous prime is 20144300417. The next prime is 20144300443. The reversal of 20144300424 is 42400344102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 20144300394 and 20144300403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380997 + ... + 430635.

It is an arithmetic number, because the mean of its divisors is an integer number (809938650).

Almost surely, 2^20144300424 is an apocalyptic number.

20144300424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20144300424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25918036800).

20144300424 is an abundant number, since it is smaller than the sum of its proper divisors (31691773176).

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

20144300424 is a wasteful number, since it uses less digits than its factorization.

20144300424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50142 (or 50138 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20144300424 its reverse (42400344102), we get a palindrome (62544644526).

The spelling of 20144300424 in words is "twenty billion, one hundred forty-four million, three hundred thousand, four hundred twenty-four".