305530828 has 6 divisors (see below), whose sum is σ = 534678956. Its totient is φ = 152765412.

The previous prime is 305530801. The next prime is 305530829. The reversal of 305530828 is 828035503.

It is a junction number, because it is equal to n+sod(n) for n = 305530793 and 305530802.

It is not an unprimeable number, because it can be changed into a prime (305530829) 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 as a sum of consecutive naturals, namely, 38191350 + ... + 38191357.

Almost surely, 2^305530828 is an apocalyptic number.

It is an amenable number.

305530828 is a deficient number, since it is larger than the sum of its proper divisors (229148128).

305530828 is a wasteful number, since it uses less digits than its factorization.

305530828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76382711 (or 76382709 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 305530828 is about 17479.4401512177. The cubic root of 305530828 is about 673.5218338583.

The spelling of 305530828 in words is "three hundred five million, five hundred thirty thousand, eight hundred twenty-eight".