229365216 has 96 divisors (see below), whose sum is σ = 678585600. Its totient is φ = 75358080.

The previous prime is 229365179. The next prime is 229365221. The reversal of 229365216 is 612563922.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59475 + ... + 63213.

It is an arithmetic number, because the mean of its divisors is an integer number (7068600).

Almost surely, 2^229365216 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 229365216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339292800).

229365216 is an abundant number, since it is smaller than the sum of its proper divisors (449220384).

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

229365216 is a wasteful number, since it uses less digits than its factorization.

229365216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829 (or 3815 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 229365216 is about 15144.8082193206. The cubic root of 229365216 is about 612.1283852147.

The spelling of 229365216 in words is "two hundred twenty-nine million, three hundred sixty-five thousand, two hundred sixteen".