30849091 has 24 divisors (see below), whose sum is σ = 38737440. Its totient is φ = 24051456.

The previous prime is 30849079. The next prime is 30849107. The reversal of 30849091 is 19094803.

It is not a de Polignac number, because 30849091 - 2⁹ = 30848579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30849001) 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 23 ways as a sum of consecutive naturals, for example, 105141 + ... + 105433.

It is an arithmetic number, because the mean of its divisors is an integer number (1614060).

Almost surely, 2^30849091 is an apocalyptic number.

30849091 is a deficient number, since it is larger than the sum of its proper divisors (7888349).

30849091 is a wasteful number, since it uses less digits than its factorization.

30849091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 30849091 is about 5554.1958013739. The cubic root of 30849091 is about 313.6274910985.

The spelling of 30849091 in words is "thirty million, eight hundred forty-nine thousand, ninety-one".