212430442 has 16 divisors (see below), whose sum is σ = 364478400. Its totient is φ = 90963648.

The previous prime is 212430403. The next prime is 212430443. The reversal of 212430442 is 244034212.

It is a happy number.

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, 12309 + ... + 24007.

It is an arithmetic number, because the mean of its divisors is an integer number (22779900).

Almost surely, 2^212430442 is an apocalyptic number.

212430442 is a deficient number, since it is larger than the sum of its proper divisors (152047958).

212430442 is a wasteful number, since it uses less digits than its factorization.

212430442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13005.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 212430442 is about 14574.9937221256. The cubic root of 212430442 is about 596.6764780315.

Adding to 212430442 its reverse (244034212), we get a palindrome (456464654).

The spelling of 212430442 in words is "two hundred twelve million, four hundred thirty thousand, four hundred forty-two".