30948688 has 10 divisors (see below), whose sum is σ = 59963114. Its totient is φ = 15474336.

The previous prime is 30948677. The next prime is 30948689. The reversal of 30948688 is 88684903.

It can be written as a sum of positive squares in only one way, i.e., 29289744 + 1658944 = 5412^2 + 1288^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30948689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 967131 + ... + 967162.

Almost surely, 2^30948688 is an apocalyptic number.

It is an amenable number.

30948688 is a deficient number, since it is larger than the sum of its proper divisors (29014426).

30948688 is a wasteful number, since it uses less digits than its factorization.

30948688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934301 (or 1934295 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 30948688 is about 5563.1545008206. The cubic root of 30948688 is about 313.9646463773.

The spelling of 30948688 in words is "thirty million, nine hundred forty-eight thousand, six hundred eighty-eight".