30948885 has 40 divisors (see below), whose sum is σ = 60530976. Its totient is φ = 15003360.

The previous prime is 30948871. The next prime is 30948893. The reversal of 30948885 is 58884903.

It is not a de Polignac number, because 30948885 - 2⁸ = 30948629 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 30948885.

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 in 39 ways as a sum of consecutive naturals, for example, 982 + ... + 7928.

Almost surely, 2^30948885 is an apocalyptic number.

It is an amenable number.

30948885 is a deficient number, since it is larger than the sum of its proper divisors (29582091).

30948885 is a wasteful number, since it uses less digits than its factorization.

30948885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6975 (or 6966 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 30948885 is about 5563.1722065742. The cubic root of 30948885 is about 313.9653125435.

It can be divided in two parts, 309 and 48885, that added together give a palindrome (49194).

The spelling of 30948885 in words is "thirty million, nine hundred forty-eight thousand, eight hundred eighty-five".