212324340 has 48 divisors (see below), whose sum is σ = 603392832. Its totient is φ = 55773696.

The previous prime is 212324323. The next prime is 212324353. The reversal of 212324340 is 43423212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22389 + ... + 30428.

It is an arithmetic number, because the mean of its divisors is an integer number (12570684).

Almost surely, 2^212324340 is an apocalyptic number.

212324340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212324340 is an abundant number, since it is smaller than the sum of its proper divisors (391068492).

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

212324340 is a wasteful number, since it uses less digits than its factorization.

212324340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52896 (or 52894 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 212324340 is about 14571.3534031675. The cubic root of 212324340 is about 596.5771214136.

Adding to 212324340 its reverse (43423212), we get a palindrome (255747552).

The spelling of 212324340 in words is "two hundred twelve million, three hundred twenty-four thousand, three hundred forty".