229029818 has 8 divisors (see below), whose sum is σ = 343610100. Its totient is φ = 114493120.

The previous prime is 229029817. The next prime is 229029859. The reversal of 229029818 is 818920922.

It can be written as a sum of positive squares in 2 ways, for example, as 216590089 + 12439729 = 14717^2 + 3527^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×229029818² = 104909315066226248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (229029811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11228 + ... + 24168.

Almost surely, 2^229029818 is an apocalyptic number.

229029818 is a deficient number, since it is larger than the sum of its proper divisors (114580282).

229029818 is a wasteful number, since it uses less digits than its factorization.

229029818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21792.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 229029818 is about 15133.7311328040. The cubic root of 229029818 is about 611.8298703344.

The spelling of 229029818 in words is "two hundred twenty-nine million, twenty-nine thousand, eight hundred eighteen".