30039205 has 12 divisors (see below), whose sum is σ = 41932620. Its totient is φ = 20598144.

The previous prime is 30039203. The next prime is 30039223. The reversal of 30039205 is 50293003.

It can be written as a sum of positive squares in 2 ways, for example, as 9400356 + 20638849 = 3066^2 + 4543^2 .

It is not a de Polignac number, because 30039205 - 2¹ = 30039203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30039203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61060 + ... + 61549.

It is an arithmetic number, because the mean of its divisors is an integer number (3494385).

Almost surely, 2^30039205 is an apocalyptic number.

30039205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30039205 is a deficient number, since it is larger than the sum of its proper divisors (11893415).

30039205 is a wasteful number, since it uses less digits than its factorization.

30039205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122628 (or 122621 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 30039205 is about 5480.8033170330. The cubic root of 30039205 is about 310.8585461767.

The spelling of 30039205 in words is "thirty million, thirty-nine thousand, two hundred five".