20300005 has 16 divisors (see below), whose sum is σ = 27143424. Its totient is φ = 14447680.

The previous prime is 20300003. The next prime is 20300011. The reversal of 20300005 is 50000302.

It is not a de Polignac number, because 20300005 - 2¹ = 20300003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20299964 and 20300000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1342 + ... + 6511.

It is an arithmetic number, because the mean of its divisors is an integer number (1696464).

Almost surely, 2^20300005 is an apocalyptic number.

It is an amenable number.

20300005 is a deficient number, since it is larger than the sum of its proper divisors (6843419).

20300005 is a wasteful number, since it uses less digits than its factorization.

20300005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7916.

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 20300005 is about 4505.5526852984. The cubic root of 20300005 is about 272.7922628115.

Adding to 20300005 its reverse (50000302), we get a palindrome (70300307).

The spelling of 20300005 in words is "twenty million, three hundred thousand, five".