30254330728 has 8 divisors (see below), whose sum is σ = 56726870130. Its totient is φ = 15127165360.

The previous prime is 30254330683. The next prime is 30254330783. The reversal of 30254330728 is 82703345203.

It can be written as a sum of positive squares in only one way, i.e., 29907551844 + 346778884 = 172938^2 + 18622^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1890895663 + ... + 1890895678.

Almost surely, 2^30254330728 is an apocalyptic number.

It is an amenable number.

30254330728 is a deficient number, since it is larger than the sum of its proper divisors (26472539402).

30254330728 is a wasteful number, since it uses less digits than its factorization.

30254330728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781791347 (or 3781791343 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 30254330728 in words is "thirty billion, two hundred fifty-four million, three hundred thirty thousand, seven hundred twenty-eight".