30680648 has 32 divisors (see below), whose sum is σ = 61167960. Its totient is φ = 14376960.

The previous prime is 30680641. The next prime is 30680717. The reversal of 30680648 is 84608603.

It can be written as a sum of positive squares in 4 ways, for example, as 21548164 + 9132484 = 4642^2 + 3022^2 .

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58628 + ... + 59148.

Almost surely, 2^30680648 is an apocalyptic number.

It is an amenable number.

30680648 is a deficient number, since it is larger than the sum of its proper divisors (30487312).

30680648 is a wasteful number, since it uses less digits than its factorization.

30680648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 30680648 is about 5539.0114641513. The cubic root of 30680648 is about 313.0556233591.

The spelling of 30680648 in words is "thirty million, six hundred eighty thousand, six hundred forty-eight".