30000249 has 12 divisors (see below), whose sum is σ = 43430400. Its totient is φ = 19955544.

The previous prime is 30000247. The next prime is 30000251. The reversal of 30000249 is 94200003.

It is an interprime number because it is at equal distance from previous prime (30000247) and next prime (30000251).

It is not a de Polignac number, because 30000249 - 2¹ = 30000247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30000247) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 832 + ... + 7790.

It is an arithmetic number, because the mean of its divisors is an integer number (3619200).

Almost surely, 2^30000249 is an apocalyptic number.

It is an amenable number.

30000249 is a deficient number, since it is larger than the sum of its proper divisors (13430151).

30000249 is a wasteful number, since it uses less digits than its factorization.

30000249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7444 (or 7441 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 30000249 is about 5477.2483054906. The cubic root of 30000249 is about 310.7241102607.

The spelling of 30000249 in words is "thirty million, two hundred forty-nine", and thus it is an aban number.