229239665 has 8 divisors (see below), whose sum is σ = 281485248. Its totient is φ = 179126640.

The previous prime is 229239623. The next prime is 229239683. The reversal of 229239665 is 566932922.

It is a happy number.

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

It is not a de Polignac number, because 229239665 - 2⁶ = 229239601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532901 + ... + 533330.

It is an arithmetic number, because the mean of its divisors is an integer number (35185656).

Almost surely, 2^229239665 is an apocalyptic number.

It is an amenable number.

229239665 is a deficient number, since it is larger than the sum of its proper divisors (52245583).

229239665 is a wasteful number, since it uses less digits than its factorization.

229239665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066279.

The product of its digits is 349920, while the sum is 44.

The square root of 229239665 is about 15140.6626341122. The cubic root of 229239665 is about 612.0166749340.

The spelling of 229239665 in words is "two hundred twenty-nine million, two hundred thirty-nine thousand, six hundred sixty-five".