229939329 has 4 divisors (see below), whose sum is σ = 306585776. Its totient is φ = 153292884.

The previous prime is 229939321. The next prime is 229939337. The reversal of 229939329 is 923939922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (229939321) and next prime (229939337).

It is not a de Polignac number, because 229939329 - 2³ = 229939321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (229939321) 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, 38323219 + ... + 38323224.

It is an arithmetic number, because the mean of its divisors is an integer number (76646444).

Almost surely, 2^229939329 is an apocalyptic number.

It is an amenable number.

229939329 is a deficient number, since it is larger than the sum of its proper divisors (76646447).

229939329 is an equidigital number, since it uses as much as digits as its factorization.

229939329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76646446.

The product of its digits is 472392, while the sum is 48.

The square root of 229939329 is about 15163.7504925398. The cubic root of 229939329 is about 612.6386893492.

The spelling of 229939329 in words is "two hundred twenty-nine million, nine hundred thirty-nine thousand, three hundred twenty-nine".