305224728 has 16 divisors (see below), whose sum is σ = 763061880. Its totient is φ = 101741568.

The previous prime is 305224723. The next prime is 305224769. The reversal of 305224728 is 827422503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305224723) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6358825 + ... + 6358872.

Almost surely, 2^305224728 is an apocalyptic number.

It is an amenable number.

305224728 is an abundant number, since it is smaller than the sum of its proper divisors (457837152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305224728 is a wasteful number, since it uses less digits than its factorization.

305224728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12717706 (or 12717702 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 305224728 is about 17470.6819557795. The cubic root of 305224728 is about 673.2968331901.

The spelling of 305224728 in words is "three hundred five million, two hundred twenty-four thousand, seven hundred twenty-eight".