30688148 has 12 divisors (see below), whose sum is σ = 55556340. Its totient is φ = 14814912.

The previous prime is 30688139. The next prime is 30688157. The reversal of 30688148 is 84188603.

It is an interprime number because it is at equal distance from previous prime (30688139) and next prime (30688157).

It can be written as a sum of positive squares in 2 ways, for example, as 6697744 + 23990404 = 2588^2 + 4898^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 132161 + ... + 132392.

It is an arithmetic number, because the mean of its divisors is an integer number (4629695).

Almost surely, 2^30688148 is an apocalyptic number.

It is an amenable number.

30688148 is a deficient number, since it is larger than the sum of its proper divisors (24868192).

30688148 is a wasteful number, since it uses less digits than its factorization.

30688148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264586 (or 264584 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 30688148 is about 5539.6884388926. The cubic root of 30688148 is about 313.0811304896.

The spelling of 30688148 in words is "thirty million, six hundred eighty-eight thousand, one hundred forty-eight".