30248642 has 6 divisors (see below), whose sum is σ = 45384633. Its totient is φ = 15120432.

The previous prime is 30248629. The next prime is 30248671. The reversal of 30248642 is 24684203.

It can be written as a sum of positive squares in 2 ways, for example, as 28633201 + 1615441 = 5351^2 + 1271^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3889.

It is a Duffinian 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 in 2 ways as a sum of consecutive naturals, for example, 5834 + ... + 9722.

Almost surely, 2^30248642 is an apocalyptic number.

30248642 is a deficient number, since it is larger than the sum of its proper divisors (15135991).

30248642 is an frugal number, since it uses more digits than its factorization.

30248642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7780 (or 3891 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 30248642 is about 5499.8765440690. The cubic root of 30248642 is about 311.5793215476.

The spelling of 30248642 in words is "thirty million, two hundred forty-eight thousand, six hundred forty-two".