229684689 has 18 divisors (see below), whose sum is σ = 359252790. Its totient is φ = 141343488.

The previous prime is 229684687. The next prime is 229684733. The reversal of 229684689 is 986486922.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 19289664 + 210395025 = 4392^2 + 14505^2 .

It is not a de Polignac number, because 229684689 - 2¹ = 229684687 is a prime.

It is a super-2 number, since 2×229684689² = 105510112722053442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (229684687) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 73984 + ... + 77025.

Almost surely, 2^229684689 is an apocalyptic number.

It is an amenable number.

229684689 is a deficient number, since it is larger than the sum of its proper divisors (129568101).

229684689 is a wasteful number, since it uses less digits than its factorization.

229684689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151041 (or 151025 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 229684689 is about 15155.3518269950. The cubic root of 229684689 is about 612.4124558484.

The spelling of 229684689 in words is "two hundred twenty-nine million, six hundred eighty-four thousand, six hundred eighty-nine".