212344424 has 16 divisors (see below), whose sum is σ = 399218820. Its totient is φ = 105886080.

The previous prime is 212344423. The next prime is 212344439. The reversal of 212344424 is 424443212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 208802500 + 3541924 = 14450^2 + 1882^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212344393 and 212344402.

It is not an unprimeable number, because it can be changed into a prime (212344421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32597 + ... + 38564.

Almost surely, 2^212344424 is an apocalyptic number.

It is an amenable number.

212344424 is a deficient number, since it is larger than the sum of its proper divisors (186874396).

212344424 is a wasteful number, since it uses less digits than its factorization.

212344424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71540 (or 71536 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 212344424 is about 14572.0425472890. The cubic root of 212344424 is about 596.5959311226.

Adding to 212344424 its reverse (424443212), we get a palindrome (636787636).

The spelling of 212344424 in words is "two hundred twelve million, three hundred forty-four thousand, four hundred twenty-four".