30328086 has 32 divisors (see below), whose sum is σ = 63256320. Its totient is φ = 9684576.

The previous prime is 30328063. The next prime is 30328087. The reversal of 30328086 is 68082303.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30328087) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13855 + ... + 15893.

It is an arithmetic number, because the mean of its divisors is an integer number (1976760).

Almost surely, 2^30328086 is an apocalyptic number.

30328086 is an abundant number, since it is smaller than the sum of its proper divisors (32928234).

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

30328086 is a wasteful number, since it uses less digits than its factorization.

30328086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 30328086 is about 5507.0941520915. The cubic root of 30328086 is about 311.8518568562.

The spelling of 30328086 in words is "thirty million, three hundred twenty-eight thousand, eighty-six".