229943505 has 64 divisors (see below), whose sum is σ = 414720000. Its totient is φ = 107838720.

The previous prime is 229943501. The next prime is 229943507. The reversal of 229943505 is 505349922.

229943505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 229943505 - 2² = 229943501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (229943501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1155396 + ... + 1155594.

It is an arithmetic number, because the mean of its divisors is an integer number (6480000).

Almost surely, 2^229943505 is an apocalyptic number.

It is an amenable number.

229943505 is a deficient number, since it is larger than the sum of its proper divisors (184776495).

229943505 is a wasteful number, since it uses less digits than its factorization.

229943505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 229943505 is about 15163.8881887199. Note that the first 3 decimals coincide. The cubic root of 229943505 is about 612.6423981010.

The spelling of 229943505 in words is "two hundred twenty-nine million, nine hundred forty-three thousand, five hundred five".