229486028209 has 15 divisors (see below), whose sum is σ = 242417835177. Its totient is φ = 217243982124.

The previous prime is 229486028203. The next prime is 229486028231. The reversal of 229486028209 is 902820684922.

The square root of 229486028209 is 479047.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 229486028209 - 2²⁵ = 229452473777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229486028203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 172935304 + ... + 172936630.

Almost surely, 2^229486028209 is an apocalyptic number.

229486028209 is the 479047-th square number.

229486028209 is the 239524-th centered octagonal number.

It is an amenable number.

229486028209 is a deficient number, since it is larger than the sum of its proper divisors (12931806968).

229486028209 is an frugal number, since it uses more digits than its factorization.

229486028209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730 (or 1346 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 229486028209 in words is "two hundred twenty-nine billion, four hundred eighty-six million, twenty-eight thousand, two hundred nine".