20144424404 has 24 divisors (see below), whose sum is σ = 37968651168. Its totient is φ = 9296408160.

The previous prime is 20144424389. The next prime is 20144424437. The reversal of 20144424404 is 40442444102.

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, 676559 + ... + 705705.

It is an arithmetic number, because the mean of its divisors is an integer number (1582027132).

Almost surely, 2^20144424404 is an apocalyptic number.

It is an amenable number.

20144424404 is a deficient number, since it is larger than the sum of its proper divisors (17824226764).

20144424404 is a wasteful number, since it uses less digits than its factorization.

20144424404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42455 (or 42453 counting only the distinct ones).

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

Adding to 20144424404 its reverse (40442444102), we get a palindrome (60586868506).

The spelling of 20144424404 in words is "twenty billion, one hundred forty-four million, four hundred twenty-four thousand, four hundred four".