211340234 has 24 divisors (see below), whose sum is σ = 374823108. Its totient is φ = 89087040.

The previous prime is 211340167. The next prime is 211340257. The reversal of 211340234 is 432043112.

211340234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 210163009 + 1177225 = 14497^2 + 1085^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11699 + ... + 23654.

Almost surely, 2^211340234 is an apocalyptic number.

211340234 is a deficient number, since it is larger than the sum of its proper divisors (163482874).

211340234 is a wasteful number, since it uses less digits than its factorization.

211340234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35430 (or 35423 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 211340234 is about 14537.5456663083. The cubic root of 211340234 is about 595.6539983063.

Adding to 211340234 its reverse (432043112), we get a palindrome (643383346).

The spelling of 211340234 in words is "two hundred eleven million, three hundred forty thousand, two hundred thirty-four".