305055028 has 24 divisors (see below), whose sum is σ = 544063688. Its totient is φ = 149630976.

The previous prime is 305055019. The next prime is 305055041. The reversal of 305055028 is 820550503.

It can be written as a sum of positive squares in 4 ways, for example, as 6041764 + 299013264 = 2458^2 + 17292^2 .

It is a junction number, because it is equal to n+sod(n) for n = 305054987 and 305055005.

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 7 ways as a sum of consecutive naturals, for example, 53650 + ... + 59062.

Almost surely, 2^305055028 is an apocalyptic number.

It is an amenable number.

305055028 is a deficient number, since it is larger than the sum of its proper divisors (239008660).

305055028 is a wasteful number, since it uses less digits than its factorization.

305055028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5683 (or 5681 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 305055028 is about 17465.8245725760. The cubic root of 305055028 is about 673.1720293500.

The spelling of 305055028 in words is "three hundred five million, fifty-five thousand, twenty-eight".