20344343 has 2 divisors, whose sum is σ = 20344344. Its totient is φ = 20344342.

The previous prime is 20344333. The next prime is 20344369. The reversal of 20344343 is 34344302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20344343 - 2⁴ = 20344327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20344333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10172171 + 10172172.

It is an arithmetic number, because the mean of its divisors is an integer number (10172172).

Almost surely, 2^20344343 is an apocalyptic number.

20344343 is a deficient number, since it is larger than the sum of its proper divisors (1).

20344343 is an equidigital number, since it uses as much as digits as its factorization.

20344343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 20344343 is about 4510.4703745840. The cubic root of 20344343 is about 272.9907236535.

Adding to 20344343 its reverse (34344302), we get a palindrome (54688645).

The spelling of 20344343 in words is "twenty million, three hundred forty-four thousand, three hundred forty-three".