30071648 has 12 divisors (see below), whose sum is σ = 59203620. Its totient is φ = 15035808.

The previous prime is 30071621. The next prime is 30071669. The reversal of 30071648 is 84617003.

It is a self number, because there is not a number n which added to its sum of digits gives 30071648.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469838 + ... + 469901.

It is an arithmetic number, because the mean of its divisors is an integer number (4933635).

Almost surely, 2^30071648 is an apocalyptic number.

It is an amenable number.

30071648 is a deficient number, since it is larger than the sum of its proper divisors (29131972).

30071648 is an equidigital number, since it uses as much as digits as its factorization.

30071648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939749 (or 939741 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 30071648 is about 5483.7622122043. The cubic root of 30071648 is about 310.9704172604.

The spelling of 30071648 in words is "thirty million, seventy-one thousand, six hundred forty-eight".