211340706 has 16 divisors (see below), whose sum is σ = 425520000. Its totient is φ = 69973808.

The previous prime is 211340687. The next prime is 211340711. The reversal of 211340706 is 607043112.

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 7 ways as a sum of consecutive naturals, for example, 117306 + ... + 119093.

It is an arithmetic number, because the mean of its divisors is an integer number (26595000).

Almost surely, 2^211340706 is an apocalyptic number.

211340706 is an abundant number, since it is smaller than the sum of its proper divisors (214179294).

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

211340706 is a wasteful number, since it uses less digits than its factorization.

211340706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236553.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 211340706 is about 14537.5619001262. The cubic root of 211340706 is about 595.6544417437.

Adding to 211340706 its reverse (607043112), we get a palindrome (818383818).

The spelling of 211340706 in words is "two hundred eleven million, three hundred forty thousand, seven hundred six".