20334239 has 2 divisors, whose sum is σ = 20334240. Its totient is φ = 20334238.

The previous prime is 20334217. The next prime is 20334241. The reversal of 20334239 is 93243302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20334239 - 2⁸ = 20333983 is a prime.

Together with 20334241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20334439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10167119 + 10167120.

It is an arithmetic number, because the mean of its divisors is an integer number (10167120).

Almost surely, 2^20334239 is an apocalyptic number.

20334239 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334239 is an equidigital number, since it uses as much as digits as its factorization.

20334239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 20334239 is about 4509.3501749143. The cubic root of 20334239 is about 272.9455226357.

The spelling of 20334239 in words is "twenty million, three hundred thirty-four thousand, two hundred thirty-nine".