229143988 has 18 divisors (see below), whose sum is σ = 409731266. Its totient is φ = 112129968.

The previous prime is 229143983. The next prime is 229143989. The reversal of 229143988 is 889341922.

It can be written as a sum of positive squares in only one way, i.e., 168272784 + 60871204 = 12972^2 + 7802^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229143983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4131 + ... + 21802.

Almost surely, 2^229143988 is an apocalyptic number.

It is an amenable number.

229143988 is a deficient number, since it is larger than the sum of its proper divisors (180587278).

229143988 is a wasteful number, since it uses less digits than its factorization.

229143988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26031 (or 25982 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 229143988 is about 15137.5027002475. The cubic root of 229143988 is about 611.9315179613.

The spelling of 229143988 in words is "two hundred twenty-nine million, one hundred forty-three thousand, nine hundred eighty-eight".