211340 has 12 divisors (see below), whose sum is σ = 443856. Its totient is φ = 84528.

The previous prime is 211339. The next prime is 211349. The reversal of 211340 is 43112.

It is a happy number.

211340 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (211349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5264 + ... + 5303.

It is an arithmetic number, because the mean of its divisors is an integer number (36988).

2²¹¹³⁴⁰ is an apocalyptic number.

211340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211340 is an abundant number, since it is smaller than the sum of its proper divisors (232516).

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

211340 is a wasteful number, since it uses less digits than its factorization.

211340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10576 (or 10574 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 211340 is about 459.7173044383. The cubic root of 211340 is about 59.5653778466.

Adding to 211340 its reverse (43112), we get a palindrome (254452).

The spelling of 211340 in words is "two hundred eleven thousand, three hundred forty", and thus it is an iban number.