216229368 has 32 divisors (see below), whose sum is σ = 548645760. Its totient is φ = 71000160.

The previous prime is 216229339. The next prime is 216229397. The reversal of 216229368 is 863922612.

It is a happy number.

216229368 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216229339) and next prime (216229397).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65628 + ... + 68843.

It is an arithmetic number, because the mean of its divisors is an integer number (17145180).

Almost surely, 2^216229368 is an apocalyptic number.

It is an amenable number.

216229368 is an abundant number, since it is smaller than the sum of its proper divisors (332416392).

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

216229368 is a wasteful number, since it uses less digits than its factorization.

216229368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134547 (or 134543 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 216229368 is about 14704.7396440739. The cubic root of 216229368 is about 600.2123026482.

The spelling of 216229368 in words is "two hundred sixteen million, two hundred twenty-nine thousand, three hundred sixty-eight".