212440334 has 16 divisors (see below), whose sum is σ = 329297280. Its totient is φ = 102682080.

The previous prime is 212440301. The next prime is 212440343. The reversal of 212440334 is 433044212.

212440334 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 102452 + ... + 104504.

It is an arithmetic number, because the mean of its divisors is an integer number (20581080).

Almost surely, 2^212440334 is an apocalyptic number.

212440334 is a deficient number, since it is larger than the sum of its proper divisors (116856946).

212440334 is a wasteful number, since it uses less digits than its factorization.

212440334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 212440334 is about 14575.3330665203. Note that the first 3 decimals coincide. The cubic root of 212440334 is about 596.6857394664.

Adding to 212440334 its reverse (433044212), we get a palindrome (645484546).

The spelling of 212440334 in words is "two hundred twelve million, four hundred forty thousand, three hundred thirty-four".