20345341 has 4 divisors (see below), whose sum is σ = 20373184. Its totient is φ = 20317500.

The previous prime is 20345293. The next prime is 20345357. The reversal of 20345341 is 14354302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20345341 - 2⁹ = 20344829 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 (20345441) 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, 12795 + ... + 14296.

It is an arithmetic number, because the mean of its divisors is an integer number (5093296).

Almost surely, 2^20345341 is an apocalyptic number.

It is an amenable number.

20345341 is a deficient number, since it is larger than the sum of its proper divisors (27843).

20345341 is an equidigital number, since it uses as much as digits as its factorization.

20345341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27842.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20345341 is about 4510.5810047044. The cubic root of 20345341 is about 272.9951874708.

Adding to 20345341 its reverse (14354302), we get a palindrome (34699643).

The spelling of 20345341 in words is "twenty million, three hundred forty-five thousand, three hundred forty-one".