30270205 has 16 divisors (see below), whose sum is σ = 41929344. Its totient is φ = 20548800.

The previous prime is 30270203. The next prime is 30270221. The reversal of 30270205 is 50207203.

It is a happy number.

It is not a de Polignac number, because 30270205 - 2¹ = 30270203 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 (30270203) 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, 747 + ... + 7816.

It is an arithmetic number, because the mean of its divisors is an integer number (2620584).

Almost surely, 2^30270205 is an apocalyptic number.

30270205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30270205 is a deficient number, since it is larger than the sum of its proper divisors (11659139).

30270205 is a wasteful number, since it uses less digits than its factorization.

30270205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8676.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 30270205 is about 5501.8365115659. The cubic root of 30270205 is about 311.6533412791.

Adding to 30270205 its reverse (50207203), we get a palindrome (80477408).

It can be divided in two parts, 302 and 70205, that added together give a palindrome (70507).

The spelling of 30270205 in words is "thirty million, two hundred seventy thousand, two hundred five".