20444114421 has 32 divisors (see below), whose sum is σ = 31216507520. Its totient is φ = 13214005632.

The previous prime is 20444114381. The next prime is 20444114459. The reversal of 20444114421 is 12441144402.

It is a happy number.

20444114421 is a `hidden beast` number, since 204 + 4 + 4 + 11 + 442 + 1 = 666.

It is not a de Polignac number, because 20444114421 - 2¹⁰ = 20444113397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444114491) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 246561 + ... + 318873.

It is an arithmetic number, because the mean of its divisors is an integer number (975515860).

Almost surely, 2^20444114421 is an apocalyptic number.

It is an amenable number.

20444114421 is a deficient number, since it is larger than the sum of its proper divisors (10772393099).

20444114421 is a wasteful number, since it uses less digits than its factorization.

20444114421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72642 (or 72636 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 20444114421 its reverse (12441144402), we get a palindrome (32885258823).

The spelling of 20444114421 in words is "twenty billion, four hundred forty-four million, one hundred fourteen thousand, four hundred twenty-one".