212330232 has 48 divisors (see below), whose sum is σ = 575802240. Its totient is φ = 70685568.

The previous prime is 212330213. The next prime is 212330269. The reversal of 212330232 is 232033212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76908 + ... + 79620.

It is an arithmetic number, because the mean of its divisors is an integer number (11995880).

Almost surely, 2^212330232 is an apocalyptic number.

It is an amenable number.

212330232 is an abundant number, since it is smaller than the sum of its proper divisors (363472008).

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

212330232 is a wasteful number, since it uses less digits than its factorization.

212330232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812 (or 3805 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 212330232 is about 14571.5555792784. Note that the first 4 decimals coincide. The cubic root of 212330232 is about 596.5826397005.

Adding to 212330232 its reverse (232033212), we get a palindrome (444363444).

The spelling of 212330232 in words is "two hundred twelve million, three hundred thirty thousand, two hundred thirty-two".