30975328 has 12 divisors (see below), whose sum is σ = 60982740. Its totient is φ = 15487648.

The previous prime is 30975317. The next prime is 30975331. The reversal of 30975328 is 82357903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483958 + ... + 484021.

It is an arithmetic number, because the mean of its divisors is an integer number (5081895).

Almost surely, 2^30975328 is an apocalyptic number.

It is an amenable number.

30975328 is a deficient number, since it is larger than the sum of its proper divisors (30007412).

30975328 is an equidigital number, since it uses as much as digits as its factorization.

30975328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967989 (or 967981 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 30975328 is about 5565.5483108136. The cubic root of 30975328 is about 314.0547053320.

The spelling of 30975328 in words is "thirty million, nine hundred seventy-five thousand, three hundred twenty-eight".