20018341 has 4 divisors (see below), whose sum is σ = 22878112. Its totient is φ = 17158572.

The previous prime is 20018293. The next prime is 20018351. The reversal of 20018341 is 14381002.

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 20018341 - 2²³ = 11629733 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 (20018351) 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, 1429875 + ... + 1429888.

It is an arithmetic number, because the mean of its divisors is an integer number (5719528).

Almost surely, 2^20018341 is an apocalyptic number.

It is an amenable number.

20018341 is a deficient number, since it is larger than the sum of its proper divisors (2859771).

20018341 is an equidigital number, since it uses as much as digits as its factorization.

20018341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859770.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 20018341 is about 4474.1860712313. The cubic root of 20018341 is about 271.5247115308.

Adding to 20018341 its reverse (14381002), we get a palindrome (34399343).

The spelling of 20018341 in words is "twenty million, eighteen thousand, three hundred forty-one".