20330343 has 12 divisors (see below), whose sum is σ = 32035848. Its totient is φ = 12321360.

The previous prime is 20330339. The next prime is 20330369. The reversal of 20330343 is 34303302.

It is not a de Polignac number, because 20330343 - 2² = 20330339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330333) 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, 102580 + ... + 102777.

It is an arithmetic number, because the mean of its divisors is an integer number (2669654).

Almost surely, 2^20330343 is an apocalyptic number.

20330343 is a deficient number, since it is larger than the sum of its proper divisors (11705505).

20330343 is a wasteful number, since it uses less digits than its factorization.

20330343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205374 (or 205371 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

The square root of 20330343 is about 4508.9181629300. The cubic root of 20330343 is about 272.9280895814.

Adding to 20330343 its reverse (34303302), we get a palindrome (54633645).

The spelling of 20330343 in words is "twenty million, three hundred thirty thousand, three hundred forty-three".