30768105 has 16 divisors (see below), whose sum is σ = 49385664. Its totient is φ = 16357440.

The previous prime is 30768103. The next prime is 30768119. The reversal of 30768105 is 50186703.

It is not a de Polignac number, because 30768105 - 2¹ = 30768103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30768103) 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 15 ways as a sum of consecutive naturals, for example, 1867 + ... + 8063.

It is an arithmetic number, because the mean of its divisors is an integer number (3086604).

Almost surely, 2^30768105 is an apocalyptic number.

It is an amenable number.

30768105 is a deficient number, since it is larger than the sum of its proper divisors (18617559).

30768105 is a wasteful number, since it uses less digits than its factorization.

30768105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 30768105 is about 5546.9004858569. The cubic root of 30768105 is about 313.3528023464.

The spelling of 30768105 in words is "thirty million, seven hundred sixty-eight thousand, one hundred five".