20044143 has 12 divisors (see below), whose sum is σ = 33088848. Its totient is φ = 11453760.

The previous prime is 20044127. The next prime is 20044147. The reversal of 20044143 is 34144002.

It is not a de Polignac number, because 20044143 - 2⁴ = 20044127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159018 + ... + 159143.

It is an arithmetic number, because the mean of its divisors is an integer number (2757404).

Almost surely, 2^20044143 is an apocalyptic number.

20044143 is a deficient number, since it is larger than the sum of its proper divisors (13044705).

20044143 is a wasteful number, since it uses less digits than its factorization.

20044143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318174 (or 318171 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20044143 is about 4477.0685721798. The cubic root of 20044143 is about 271.6413191417.

Adding to 20044143 its reverse (34144002), we get a palindrome (54188145).

The spelling of 20044143 in words is "twenty million, forty-four thousand, one hundred forty-three".