30328078 has 16 divisors (see below), whose sum is σ = 50122800. Its totient is φ = 13648000.

The previous prime is 30328063. The next prime is 30328087. The reversal of 30328078 is 87082303.

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, 4603 + ... + 9046.

It is an arithmetic number, because the mean of its divisors is an integer number (3132675).

Almost surely, 2^30328078 is an apocalyptic number.

30328078 is a deficient number, since it is larger than the sum of its proper divisors (19794722).

30328078 is a wasteful number, since it uses less digits than its factorization.

30328078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13763.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 30328078 is about 5507.0934257556. The cubic root of 30328078 is about 311.8518294359.

The spelling of 30328078 in words is "thirty million, three hundred twenty-eight thousand, seventy-eight".