30768075 has 72 divisors (see below), whose sum is σ = 60617648. Its totient is φ = 14826240.

The previous prime is 30768071. The next prime is 30768097. The reversal of 30768075 is 57086703.

It is not a de Polignac number, because 30768075 - 2² = 30768071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30768071) by changing a digit.

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 in 71 ways as a sum of consecutive naturals, for example, 195897 + ... + 196053.

Almost surely, 2^30768075 is an apocalyptic number.

30768075 is a deficient number, since it is larger than the sum of its proper divisors (29849573).

30768075 is a wasteful number, since it uses less digits than its factorization.

30768075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 30768075 is about 5546.8977816434. The cubic root of 30768075 is about 313.3527005030.

The spelling of 30768075 in words is "thirty million, seven hundred sixty-eight thousand, seventy-five".