229712188 has 12 divisors (see below), whose sum is σ = 403599672. Its totient is φ = 114398000.

The previous prime is 229712183. The next prime is 229712191. The reversal of 229712188 is 881217922.

229712188 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

229712188 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 229712188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229712183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113395 + ... + 115402.

It is an arithmetic number, because the mean of its divisors is an integer number (33633306).

Almost surely, 2^229712188 is an apocalyptic number.

It is an amenable number.

229712188 is a deficient number, since it is larger than the sum of its proper divisors (173887484).

229712188 is a wasteful number, since it uses less digits than its factorization.

229712188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229052 (or 229050 counting only the distinct ones).

The product of its digits is 32256, while the sum is 40.

The square root of 229712188 is about 15156.2590371107. The cubic root of 229712188 is about 612.4368952340.

The spelling of 229712188 in words is "two hundred twenty-nine million, seven hundred twelve thousand, one hundred eighty-eight".