212043304 has 24 divisors (see below), whose sum is σ = 437012730. Its totient is φ = 96382880.

The previous prime is 212043283. The next prime is 212043311. The reversal of 212043304 is 403340212.

It can be written as a sum of positive squares in only one way, i.e., 198866404 + 13176900 = 14102^2 + 3630^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108559 + ... + 110494.

Almost surely, 2^212043304 is an apocalyptic number.

It is an amenable number.

212043304 is an abundant number, since it is smaller than the sum of its proper divisors (224969426).

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

212043304 is a wasteful number, since it uses less digits than its factorization.

212043304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219081 (or 219066 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 212043304 is about 14561.7067680956. The cubic root of 212043304 is about 596.3137920897.

Adding to 212043304 its reverse (403340212), we get a palindrome (615383516).

The spelling of 212043304 in words is "two hundred twelve million, forty-three thousand, three hundred four".