229401216 has 192 divisors, whose sum is σ = 738635040. Its totient is φ = 67737600.

The previous prime is 229401203. The next prime is 229401239. The reversal of 229401216 is 612104922.

It is a tau number, because it is divible by the number of its divisors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 229401216.

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 23 ways as a sum of consecutive naturals, for example, 544686 + ... + 545106.

Almost surely, 2^229401216 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 229401216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369317520).

229401216 is an abundant number, since it is smaller than the sum of its proper divisors (509233824).

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

229401216 is a wasteful number, since it uses less digits than its factorization.

229401216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 229401216 is about 15145.9966987980. The cubic root of 229401216 is about 612.1604090606.

The spelling of 229401216 in words is "two hundred twenty-nine million, four hundred one thousand, two hundred sixteen".