211393068 has 12 divisors (see below), whose sum is σ = 493250520. Its totient is φ = 70464352.

The previous prime is 211393033. The next prime is 211393087. The reversal of 211393068 is 860393112.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 8808033 + ... + 8808056.

It is an arithmetic number, because the mean of its divisors is an integer number (41104210).

Almost surely, 2^211393068 is an apocalyptic number.

It is an amenable number.

211393068 is an abundant number, since it is smaller than the sum of its proper divisors (281857452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211393068 is a wasteful number, since it uses less digits than its factorization.

211393068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17616096 (or 17616094 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 211393068 is about 14539.3627095551. The cubic root of 211393068 is about 595.7036310093.

The spelling of 211393068 in words is "two hundred eleven million, three hundred ninety-three thousand, sixty-eight".