30865982 has 48 divisors (see below), whose sum is σ = 57915648. Its totient is φ = 12257280.

The previous prime is 30865979. The next prime is 30866009. The reversal of 30865982 is 28956803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161507 + ... + 161697.

It is an arithmetic number, because the mean of its divisors is an integer number (1206576).

Almost surely, 2^30865982 is an apocalyptic number.

30865982 is a deficient number, since it is larger than the sum of its proper divisors (27049666).

30865982 is a wasteful number, since it uses less digits than its factorization.

30865982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 30865982 is about 5555.7161554565. The cubic root of 30865982 is about 313.6847214763.

The spelling of 30865982 in words is "thirty million, eight hundred sixty-five thousand, nine hundred eighty-two".