212422304 has 48 divisors (see below), whose sum is σ = 428652000. Its totient is φ = 103584000.

The previous prime is 212422289. The next prime is 212422307. The reversal of 212422304 is 403224212.

It is not an unprimeable number, because it can be changed into a prime (212422307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425447 + ... + 425945.

It is an arithmetic number, because the mean of its divisors is an integer number (8930250).

Almost surely, 2^212422304 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 212422304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214326000).

212422304 is an abundant number, since it is smaller than the sum of its proper divisors (216229696).

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

212422304 is a wasteful number, since it uses less digits than its factorization.

212422304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 805 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 212422304 is about 14574.7145426591. The cubic root of 212422304 is about 596.6688585724.

Adding to 212422304 its reverse (403224212), we get a palindrome (615646516).

The spelling of 212422304 in words is "two hundred twelve million, four hundred twenty-two thousand, three hundred four".