30682205 has 4 divisors (see below), whose sum is σ = 36818652. Its totient is φ = 24545760.

The previous prime is 30682199. The next prime is 30682243. The reversal of 30682205 is 50228603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23483716 + 7198489 = 4846^2 + 2683^2 .

It is not a de Polignac number, because 30682205 - 2⁴ = 30682189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3068216 + ... + 3068225.

It is an arithmetic number, because the mean of its divisors is an integer number (9204663).

Almost surely, 2^30682205 is an apocalyptic number.

It is an amenable number.

30682205 is a deficient number, since it is larger than the sum of its proper divisors (6136447).

30682205 is an equidigital number, since it uses as much as digits as its factorization.

30682205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6136446.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 30682205 is about 5539.1520109129. The cubic root of 30682205 is about 313.0609189813.

The spelling of 30682205 in words is "thirty million, six hundred eighty-two thousand, two hundred five".