20344023 has 12 divisors (see below), whose sum is σ = 33583888. Its totient is φ = 11625120.

The previous prime is 20344007. The next prime is 20344033. The reversal of 20344023 is 32044302.

20344023 is a `hidden beast` number, since 203 + 440 + 23 = 666.

It is not a de Polignac number, because 20344023 - 2⁴ = 20344007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20343987 and 20344005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344033) 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, 161398 + ... + 161523.

Almost surely, 2^20344023 is an apocalyptic number.

20344023 is a deficient number, since it is larger than the sum of its proper divisors (13239865).

20344023 is a wasteful number, since it uses less digits than its factorization.

20344023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322934 (or 322931 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 20344023 is about 4510.4349014258. The cubic root of 20344023 is about 272.9892923386.

Adding to 20344023 its reverse (32044302), we get a palindrome (52388325).

The spelling of 20344023 in words is "twenty million, three hundred forty-four thousand, twenty-three".