30684648 has 16 divisors (see below), whose sum is σ = 76711680. Its totient is φ = 10228208.

The previous prime is 30684631. The next prime is 30684653. The reversal of 30684648 is 84648603.

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 3 ways as a sum of consecutive naturals, for example, 639240 + ... + 639287.

It is an arithmetic number, because the mean of its divisors is an integer number (4794480).

Almost surely, 2^30684648 is an apocalyptic number.

It is an amenable number.

30684648 is an abundant number, since it is smaller than the sum of its proper divisors (46027032).

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

30684648 is a wasteful number, since it uses less digits than its factorization.

30684648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278536 (or 1278532 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 30684648 is about 5539.3725276425. The cubic root of 30684648 is about 313.0692276793.

The spelling of 30684648 in words is "thirty million, six hundred eighty-four thousand, six hundred forty-eight".