229782866 has 8 divisors (see below), whose sum is σ = 344758140. Its totient is φ = 114863488.

The previous prime is 229782851. The next prime is 229782869. The reversal of 229782866 is 668287922.

229782866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 224850025 + 4932841 = 14995^2 + 2221^2 .

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

It is not an unprimeable number, because it can be changed into a prime (229782869) 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, 1451 + ... + 21486.

Almost surely, 2^229782866 is an apocalyptic number.

229782866 is a deficient number, since it is larger than the sum of its proper divisors (114975274).

229782866 is a wasteful number, since it uses less digits than its factorization.

229782866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27948.

The product of its digits is 1161216, while the sum is 50.

The square root of 229782866 is about 15158.5905017584. The cubic root of 229782866 is about 612.4997004580.

The spelling of 229782866 in words is "two hundred twenty-nine million, seven hundred eighty-two thousand, eight hundred sixty-six".