229761855 has 24 divisors (see below), whose sum is σ = 399823632. Its totient is φ = 122056704.

The previous prime is 229761841. The next prime is 229761859. The reversal of 229761855 is 558167922.

229761855 is a `hidden beast` number, since 2 + 29 + 7 + 618 + 5 + 5 = 666.

It is not a de Polignac number, because 229761855 - 2¹¹ = 229759807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 229761855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229761859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1632 + ... + 21498.

It is an arithmetic number, because the mean of its divisors is an integer number (16659318).

Almost surely, 2^229761855 is an apocalyptic number.

229761855 is a deficient number, since it is larger than the sum of its proper divisors (170061777).

229761855 is a wasteful number, since it uses less digits than its factorization.

229761855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20135 (or 20132 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 229761855 is about 15157.8974465458. The cubic root of 229761855 is about 612.4810312049.

The spelling of 229761855 in words is "two hundred twenty-nine million, seven hundred sixty-one thousand, eight hundred fifty-five".