30681652 has 24 divisors (see below), whose sum is σ = 56498400. Its totient is φ = 14557536.

The previous prime is 30681631. The next prime is 30681683. The reversal of 30681652 is 25618603.

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 in 7 ways as a sum of consecutive naturals, for example, 4603 + ... + 9085.

It is an arithmetic number, because the mean of its divisors is an integer number (2354100).

Almost surely, 2^30681652 is an apocalyptic number.

It is an amenable number.

30681652 is a deficient number, since it is larger than the sum of its proper divisors (25816748).

30681652 is a wasteful number, since it uses less digits than its factorization.

30681652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4575 (or 4573 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 30681652 is about 5539.1020933000. The cubic root of 30681652 is about 313.0590381546.

The spelling of 30681652 in words is "thirty million, six hundred eighty-one thousand, six hundred fifty-two".