30302805 has 16 divisors (see below), whose sum is σ = 52214400. Its totient is φ = 14918208.

The previous prime is 30302771. The next prime is 30302821. The reversal of 30302805 is 50820303.

It is not a de Polignac number, because 30302805 - 2⁷ = 30302677 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77505 + ... + 77894.

It is an arithmetic number, because the mean of its divisors is an integer number (3263400).

Almost surely, 2^30302805 is an apocalyptic number.

It is an amenable number.

30302805 is a deficient number, since it is larger than the sum of its proper divisors (21911595).

30302805 is a wasteful number, since it uses less digits than its factorization.

30302805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155420.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30302805 is about 5504.7983614298. The cubic root of 30302805 is about 311.7651812200.

The spelling of 30302805 in words is "thirty million, three hundred two thousand, eight hundred five".