30680645 has 8 divisors (see below), whose sum is σ = 37161504. Its totient is φ = 24314704.

The previous prime is 30680641. The next prime is 30680717. The reversal of 30680645 is 54608603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30680645 - 2² = 30680641 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30680641) by changing a digit.

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, 28139 + ... + 29208.

It is an arithmetic number, because the mean of its divisors is an integer number (4645188).

Almost surely, 2^30680645 is an apocalyptic number.

It is an amenable number.

30680645 is a deficient number, since it is larger than the sum of its proper divisors (6480859).

30680645 is a wasteful number, since it uses less digits than its factorization.

30680645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57459.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 30680645 is about 5539.0111933449. The cubic root of 30680645 is about 313.0556131554.

The spelling of 30680645 in words is "thirty million, six hundred eighty thousand, six hundred forty-five".