216338712 has 128 divisors (see below), whose sum is σ = 591763200. Its totient is φ = 65691648.

The previous prime is 216338701. The next prime is 216338747. The reversal of 216338712 is 217833612.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 2230248 + ... + 2230344.

It is an arithmetic number, because the mean of its divisors is an integer number (4623150).

Almost surely, 2^216338712 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 216338712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295881600).

216338712 is an abundant number, since it is smaller than the sum of its proper divisors (375424488).

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

216338712 is a wasteful number, since it uses less digits than its factorization.

216338712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 261 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 216338712 is about 14708.4571590633. The cubic root of 216338712 is about 600.3134584334.

The spelling of 216338712 in words is "two hundred sixteen million, three hundred thirty-eight thousand, seven hundred twelve".