20144424395 has 8 divisors (see below), whose sum is σ = 24182457504. Its totient is φ = 16109440704.

The previous prime is 20144424389. The next prime is 20144424437. The reversal of 20144424395 is 59342444102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20144424395 - 2⁴ = 20144424379 is a prime.

It is a super-2 number, since 2×20144424395² (a number of 21 digits) contains 22 as substring.

It is a Duffinian 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, 747794 + ... + 774263.

It is an arithmetic number, because the mean of its divisors is an integer number (3022807188).

Almost surely, 2^20144424395 is an apocalyptic number.

20144424395 is a deficient number, since it is larger than the sum of its proper divisors (4038033109).

20144424395 is a wasteful number, since it uses less digits than its factorization.

20144424395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524709.

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 20144424395 its reverse (59342444102), we get a palindrome (79486868497).

The spelling of 20144424395 in words is "twenty billion, one hundred forty-four million, four hundred twenty-four thousand, three hundred ninety-five".