30020305 has 8 divisors (see below), whose sum is σ = 41170752. Its totient is φ = 20585328.

The previous prime is 30020299. The next prime is 30020327. The reversal of 30020305 is 50302003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30020305 - 2⁵ = 30020273 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428827 + ... + 428896.

It is an arithmetic number, because the mean of its divisors is an integer number (5146344).

Almost surely, 2^30020305 is an apocalyptic number.

30020305 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30020305 is a deficient number, since it is larger than the sum of its proper divisors (11150447).

30020305 is an equidigital number, since it uses as much as digits as its factorization.

30020305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857735.

The product of its (nonzero) digits is 90, while the sum is 13.

The square root of 30020305 is about 5479.0788459375. The cubic root of 30020305 is about 310.7933374032.

Adding to 30020305 its reverse (50302003), we get a palindrome (80322308).

The spelling of 30020305 in words is "thirty million, twenty thousand, three hundred five".