224643866 has 4 divisors (see below), whose sum is σ = 336965802. Its totient is φ = 112321932.

The previous prime is 224643803. The next prime is 224643869. The reversal of 224643866 is 668346422.

224643866 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 218418841 + 6225025 = 14779^2 + 2495^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (224643869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56160965 + ... + 56160968.

Almost surely, 2^224643866 is an apocalyptic number.

224643866 is a deficient number, since it is larger than the sum of its proper divisors (112321936).

224643866 is a wasteful number, since it uses less digits than its factorization.

224643866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112321935.

The product of its digits is 331776, while the sum is 41.

The square root of 224643866 is about 14988.1241654852. The cubic root of 224643866 is about 607.8991295177.

The spelling of 224643866 in words is "two hundred twenty-four million, six hundred forty-three thousand, eight hundred sixty-six".