212335424 has 42 divisors (see below), whose sum is σ = 490152690. Its totient is φ = 90999552.

The previous prime is 212335421. The next prime is 212335447. The reversal of 212335424 is 424533212.

It can be written as a sum of positive squares in only one way, i.e., 121705024 + 90630400 = 11032^2 + 9520^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212335393 and 212335402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212335421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30719 + ... + 36990.

Almost surely, 2^212335424 is an apocalyptic number.

It is an amenable number.

212335424 is an abundant number, since it is smaller than the sum of its proper divisors (277817266).

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

212335424 is an equidigital number, since it uses as much as digits as its factorization.

212335424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67735 (or 67718 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 212335424 is about 14571.7337334993. The cubic root of 212335424 is about 596.5875023019.

Adding to 212335424 its reverse (424533212), we get a palindrome (636868636).

The spelling of 212335424 in words is "two hundred twelve million, three hundred thirty-five thousand, four hundred twenty-four".