229138468 has 12 divisors (see below), whose sum is σ = 431837980. Its totient is φ = 105756192.

The previous prime is 229138439. The next prime is 229138471. The reversal of 229138468 is 864831922.

It can be written as a sum of positive squares in 2 ways, for example, as 18249984 + 210888484 = 4272^2 + 14522^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2203203 + ... + 2203306.

Almost surely, 2^229138468 is an apocalyptic number.

It is an amenable number.

229138468 is a deficient number, since it is larger than the sum of its proper divisors (202699512).

229138468 is a wasteful number, since it uses less digits than its factorization.

229138468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406526 (or 4406524 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 229138468 is about 15137.3203705279. The cubic root of 229138468 is about 611.9266041818.

The spelling of 229138468 in words is "two hundred twenty-nine million, one hundred thirty-eight thousand, four hundred sixty-eight".