229581888 has 56 divisors (see below), whose sum is σ = 613501440. Its totient is φ = 75763200.

The previous prime is 229581881. The next prime is 229581907. The reversal of 229581888 is 888185922.

It is a self number, because there is not a number n which added to its sum of digits gives 229581888.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229581881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13473 + ... + 25311.

Almost surely, 2^229581888 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 229581888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306750720).

229581888 is an abundant number, since it is smaller than the sum of its proper divisors (383919552).

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

229581888 is a wasteful number, since it uses less digits than its factorization.

229581888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11955 (or 11945 counting only the distinct ones).

The product of its digits is 737280, while the sum is 51.

The square root of 229581888 is about 15151.9598732309. The cubic root of 229581888 is about 612.3210754897.

The spelling of 229581888 in words is "two hundred twenty-nine million, five hundred eighty-one thousand, eight hundred eighty-eight".