229905447 has 8 divisors (see below), whose sum is σ = 319868544. Its totient is φ = 146606328.

The previous prime is 229905437. The next prime is 229905449. The reversal of 229905447 is 744509922.

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

It is not a de Polignac number, because 229905447 - 2¹⁴ = 229889063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 229905399 and 229905408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229905449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1665913 + ... + 1666050.

It is an arithmetic number, because the mean of its divisors is an integer number (39983568).

Almost surely, 2^229905447 is an apocalyptic number.

229905447 is a deficient number, since it is larger than the sum of its proper divisors (89963097).

229905447 is a wasteful number, since it uses less digits than its factorization.

229905447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3331989.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 229905447 is about 15162.6332475596. The cubic root of 229905447 is about 612.6085967102.

The spelling of 229905447 in words is "two hundred twenty-nine million, nine hundred five thousand, four hundred forty-seven".