30680075 has 12 divisors (see below), whose sum is σ = 38566728. Its totient is φ = 24206400.

The previous prime is 30680047. The next prime is 30680077. The reversal of 30680075 is 57008603.

It is not a de Polignac number, because 30680075 - 2⁸ = 30679819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30680077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6581 + ... + 10230.

It is an arithmetic number, because the mean of its divisors is an integer number (3213894).

Almost surely, 2^30680075 is an apocalyptic number.

30680075 is a deficient number, since it is larger than the sum of its proper divisors (7886653).

30680075 is a wasteful number, since it uses less digits than its factorization.

30680075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16894 (or 16889 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 30680075 is about 5538.9597398790. The cubic root of 30680075 is about 313.0536744434.

Adding to 30680075 its reverse (57008603), we get a palindrome (87688678).

The spelling of 30680075 in words is "thirty million, six hundred eighty thousand, seventy-five".