229319712 has 72 divisors (see below), whose sum is σ = 653837184. Its totient is φ = 76239744.

The previous prime is 229319707. The next prime is 229319719. The reversal of 229319712 is 217913922.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229319719) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 144073 + ... + 145655.

It is an arithmetic number, because the mean of its divisors is an integer number (9081072).

Almost surely, 2^229319712 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 229319712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326918592).

229319712 is an abundant number, since it is smaller than the sum of its proper divisors (424517472).

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

229319712 is a wasteful number, since it uses less digits than its factorization.

229319712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102 (or 2091 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 229319712 is about 15143.3058477995. The cubic root of 229319712 is about 612.0879022784.

The spelling of 229319712 in words is "two hundred twenty-nine million, three hundred nineteen thousand, seven hundred twelve".