20044823 has 2 divisors, whose sum is σ = 20044824. Its totient is φ = 20044822.

The previous prime is 20044813. The next prime is 20044841. The reversal of 20044823 is 32844002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20044823 - 2⁴ = 20044807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20044813) by changing a digit.

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 as a sum of consecutive naturals, namely, 10022411 + 10022412.

It is an arithmetic number, because the mean of its divisors is an integer number (10022412).

Almost surely, 2^20044823 is an apocalyptic number.

20044823 is a deficient number, since it is larger than the sum of its proper divisors (1).

20044823 is an equidigital number, since it uses as much as digits as its factorization.

20044823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 20044823 is about 4477.1445140848. The cubic root of 20044823 is about 271.6443909286.

Adding to 20044823 its reverse (32844002), we get a palindrome (52888825).

The spelling of 20044823 in words is "twenty million, forty-four thousand, eight hundred twenty-three".