229302288 has 90 divisors (see below), whose sum is σ = 663496782. Its totient is φ = 73923840.

The previous prime is 229302263. The next prime is 229302329. The reversal of 229302288 is 882203922.

It can be written as a sum of positive squares in only one way, i.e., 179345664 + 49956624 = 13392^2 + 7068^2 .

It is a super-4 number, since 4×229302288⁴ (a number of 35 digits) contains 4444 as substring.

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

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 17 ways as a sum of consecutive naturals, for example, 137556 + ... + 139212.

Almost surely, 2^229302288 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 229302288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331748391).

229302288 is an abundant number, since it is smaller than the sum of its proper divisors (434194494).

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

229302288 is a wasteful number, since it uses less digits than its factorization.

229302288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733 (or 1693 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 229302288 is about 15142.7305331634. The cubic root of 229302288 is about 612.0723994830.

The spelling of 229302288 in words is "two hundred twenty-nine million, three hundred two thousand, two hundred eighty-eight".