20305041 has 4 divisors (see below), whose sum is σ = 27073392. Its totient is φ = 13536692.

The previous prime is 20305039. The next prime is 20305049. The reversal of 20305041 is 14050302.

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 20305041 - 2¹ = 20305039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20305041.

It is not an unprimeable number, because it can be changed into a prime (20305049) 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, 3384171 + ... + 3384176.

It is an arithmetic number, because the mean of its divisors is an integer number (6768348).

Almost surely, 2^20305041 is an apocalyptic number.

It is an amenable number.

20305041 is a deficient number, since it is larger than the sum of its proper divisors (6768351).

20305041 is an equidigital number, since it uses as much as digits as its factorization.

20305041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6768350.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20305041 is about 4506.1115165961. Note that the first 3 decimals coincide. The cubic root of 20305041 is about 272.8148189348.

Adding to 20305041 its reverse (14050302), we get a palindrome (34355343).

The spelling of 20305041 in words is "twenty million, three hundred five thousand, forty-one".