20043269 has 2 divisors, whose sum is σ = 20043270. Its totient is φ = 20043268.

The previous prime is 20043259. The next prime is 20043311. The reversal of 20043269 is 96234002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14730244 + 5313025 = 3838^2 + 2305^2 .

It is a cyclic number.

It is not a de Polignac number, because 20043269 - 2⁴ = 20043253 is a prime.

It is a super-2 number, since 2×20043269² = 803465264412722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20043239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021634 + 10021635.

It is an arithmetic number, because the mean of its divisors is an integer number (10021635).

Almost surely, 2^20043269 is an apocalyptic number.

It is an amenable number.

20043269 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043269 is an equidigital number, since it uses as much as digits as its factorization.

20043269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 20043269 is about 4476.9709626041. The cubic root of 20043269 is about 271.6373708901.

The spelling of 20043269 in words is "twenty million, forty-three thousand, two hundred sixty-nine".