20080343 has 4 divisors (see below), whose sum is σ = 20728128. Its totient is φ = 19432560.

The previous prime is 20080339. The next prime is 20080373. The reversal of 20080343 is 34308002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20080343 - 2² = 20080339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20080373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323846 + ... + 323907.

It is an arithmetic number, because the mean of its divisors is an integer number (5182032).

Almost surely, 2^20080343 is an apocalyptic number.

20080343 is a deficient number, since it is larger than the sum of its proper divisors (647785).

20080343 is an equidigital number, since it uses as much as digits as its factorization.

20080343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647784.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20080343 is about 4481.1095724162. The cubic root of 20080343 is about 271.8047501238.

Adding to 20080343 its reverse (34308002), we get a palindrome (54388345).

The spelling of 20080343 in words is "twenty million, eighty thousand, three hundred forty-three".