20326433 has 2 divisors, whose sum is σ = 20326434. Its totient is φ = 20326432.

The previous prime is 20326381. The next prime is 20326459. The reversal of 20326433 is 33462302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15626209 + 4700224 = 3953^2 + 2168^2 .

It is a cyclic number.

It is not a de Polignac number, because 20326433 - 2⁸ = 20326177 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20326399 and 20326408.

It is not a weakly prime, because it can be changed into another prime (20322433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10163216 + 10163217.

It is an arithmetic number, because the mean of its divisors is an integer number (10163217).

Almost surely, 2^20326433 is an apocalyptic number.

It is an amenable number.

20326433 is a deficient number, since it is larger than the sum of its proper divisors (1).

20326433 is an equidigital number, since it uses as much as digits as its factorization.

20326433 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 23.

The square root of 20326433 is about 4508.4845569215. The cubic root of 20326433 is about 272.9105916433.

Adding to 20326433 its reverse (33462302), we get a palindrome (53788735).

The spelling of 20326433 in words is "twenty million, three hundred twenty-six thousand, four hundred thirty-three".