30985648 has 30 divisors (see below), whose sum is σ = 60962244. Its totient is φ = 15256512.

The previous prime is 30985639. The next prime is 30985657. The reversal of 30985648 is 84658903.

It is an interprime number because it is at equal distance from previous prime (30985639) and next prime (30985657).

It is a super-2 number, since 2×30985648² = 1920220763959808, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 190015 + ... + 190177.

Almost surely, 2^30985648 is an apocalyptic number.

It is an amenable number.

30985648 is a deficient number, since it is larger than the sum of its proper divisors (29976596).

30985648 is a wasteful number, since it uses less digits than its factorization.

30985648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 30985648 is about 5566.4753659744. The cubic root of 30985648 is about 314.0895791590.

The spelling of 30985648 in words is "thirty million, nine hundred eighty-five thousand, six hundred forty-eight".