30006205 has 16 divisors (see below), whose sum is σ = 36926208. Its totient is φ = 23400000.

The previous prime is 30006203. The next prime is 30006209. The reversal of 30006205 is 50260003.

It is not a de Polignac number, because 30006205 - 2¹ = 30006203 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 (30006203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39580 + ... + 40330.

It is an arithmetic number, because the mean of its divisors is an integer number (2307888).

Almost surely, 2^30006205 is an apocalyptic number.

It is an amenable number.

30006205 is a deficient number, since it is larger than the sum of its proper divisors (6920003).

30006205 is a wasteful number, since it uses less digits than its factorization.

30006205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30006205 is about 5477.7919821768. The cubic root of 30006205 is about 310.7446717605.

Adding to 30006205 its reverse (50260003), we get a palindrome (80266208).

The spelling of 30006205 in words is "thirty million, six thousand, two hundred five".