212340410 has 64 divisors (see below), whose sum is σ = 407773440. Its totient is φ = 79511040.

The previous prime is 212340397. The next prime is 212340413. The reversal of 212340410 is 14043212.

212340410 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212340413) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1549862 + ... + 1549998.

It is an arithmetic number, because the mean of its divisors is an integer number (6371460).

Almost surely, 2^212340410 is an apocalyptic number.

212340410 is a deficient number, since it is larger than the sum of its proper divisors (195433030).

212340410 is a wasteful number, since it uses less digits than its factorization.

212340410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 212340410 is about 14571.9048171473. The cubic root of 212340410 is about 596.5921718980.

Adding to 212340410 its reverse (14043212), we get a palindrome (226383622).

The spelling of 212340410 in words is "two hundred twelve million, three hundred forty thousand, four hundred ten".