212334304 has 144 divisors (see below), whose sum is σ = 531256320. Its totient is φ = 81768960.

The previous prime is 212334281. The next prime is 212334313. The reversal of 212334304 is 403433212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2687737 + ... + 2687815.

It is an arithmetic number, because the mean of its divisors is an integer number (3689280).

Almost surely, 2^212334304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212334304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265628160).

212334304 is an abundant number, since it is smaller than the sum of its proper divisors (318922016).

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

212334304 is a wasteful number, since it uses less digits than its factorization.

212334304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 212334304 is about 14571.6953028809. The cubic root of 212334304 is about 596.5864533653.

Adding to 212334304 its reverse (403433212), we get a palindrome (615767516).

The spelling of 212334304 in words is "two hundred twelve million, three hundred thirty-four thousand, three hundred four".