30304215 has 12 divisors (see below), whose sum is σ = 52527384. Its totient is φ = 16162224.

The previous prime is 30304187. The next prime is 30304231. The reversal of 30304215 is 51240303.

It is not a de Polignac number, because 30304215 - 2¹⁰ = 30303191 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 336669 + ... + 336758.

It is an arithmetic number, because the mean of its divisors is an integer number (4377282).

Almost surely, 2^30304215 is an apocalyptic number.

30304215 is a deficient number, since it is larger than the sum of its proper divisors (22223169).

30304215 is a wasteful number, since it uses less digits than its factorization.

30304215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673438 (or 673435 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 30304215 is about 5504.9264300261. The cubic root of 30304215 is about 311.7700166589.

Adding to 30304215 its reverse (51240303), we get a palindrome (81544518).

The spelling of 30304215 in words is "thirty million, three hundred four thousand, two hundred fifteen".