30680732 has 12 divisors (see below), whose sum is σ = 54427296. Its totient is φ = 15130080.

The previous prime is 30680719. The next prime is 30680737. The reversal of 30680732 is 23708603.

It is a junction number, because it is equal to n+sod(n) for n = 30680695 and 30680704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30680737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52244 + ... + 52827.

It is an arithmetic number, because the mean of its divisors is an integer number (4535608).

Almost surely, 2^30680732 is an apocalyptic number.

It is an amenable number.

30680732 is a deficient number, since it is larger than the sum of its proper divisors (23746564).

30680732 is a wasteful number, since it uses less digits than its factorization.

30680732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105148 (or 105146 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 30680732 is about 5539.0190467266. The cubic root of 30680732 is about 313.0559090620.

The spelling of 30680732 in words is "thirty million, six hundred eighty thousand, seven hundred thirty-two".