30683868 has 36 divisors (see below), whose sum is σ = 72630600. Its totient is φ = 10081760.

The previous prime is 30683843. The next prime is 30683899. The reversal of 30683868 is 86838603.

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 11 ways as a sum of consecutive naturals, for example, 205858 + ... + 206006.

Almost surely, 2^30683868 is an apocalyptic number.

It is an amenable number.

30683868 is an abundant number, since it is smaller than the sum of its proper divisors (41946732).

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

30683868 is a wasteful number, since it uses less digits than its factorization.

30683868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 30683868 is about 5539.3021221089. The cubic root of 30683868 is about 313.0665749297.

The spelling of 30683868 in words is "thirty million, six hundred eighty-three thousand, eight hundred sixty-eight".