212304443 has 4 divisors (see below), whose sum is σ = 228635568. Its totient is φ = 195973320.

The previous prime is 212304431. The next prime is 212304451. The reversal of 212304443 is 344403212.

212304443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212304443 - 2¹⁴ = 212288059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212304643) 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, 8165543 + ... + 8165568.

It is an arithmetic number, because the mean of its divisors is an integer number (57158892).

Almost surely, 2^212304443 is an apocalyptic number.

212304443 is a deficient number, since it is larger than the sum of its proper divisors (16331125).

212304443 is a wasteful number, since it uses less digits than its factorization.

212304443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16331124.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 212304443 is about 14570.6706434536. The cubic root of 212304443 is about 596.5584856702.

Adding to 212304443 its reverse (344403212), we get a palindrome (556707655).

The spelling of 212304443 in words is "two hundred twelve million, three hundred four thousand, four hundred forty-three".