212430444 has 24 divisors (see below), whose sum is σ = 504073920. Its totient is φ = 69609744.

The previous prime is 212430443. The next prime is 212430457. The reversal of 212430444 is 444034212.

It is a happy number.

212430444 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212430443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149314 + ... + 150729.

It is an arithmetic number, because the mean of its divisors is an integer number (21003080).

Almost surely, 2^212430444 is an apocalyptic number.

It is an amenable number.

212430444 is an abundant number, since it is smaller than the sum of its proper divisors (291643476).

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

212430444 is a wasteful number, since it uses less digits than its factorization.

212430444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300109 (or 300107 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 212430444 is about 14574.9937907362. The cubic root of 212430444 is about 596.6764799041.

Adding to 212430444 its reverse (444034212), we get a palindrome (656464656).

The spelling of 212430444 in words is "two hundred twelve million, four hundred thirty thousand, four hundred forty-four".