223630668 has 18 divisors (see below), whose sum is σ = 565288724. Its totient is φ = 74543544.

The previous prime is 223630661. The next prime is 223630681. The reversal of 223630668 is 866036322.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6211963 = 223630668 / (2 + 2 + 3 + 6 + 3 + 0 + 6 + 6 + 8).

It is not an unprimeable number, because it can be changed into a prime (223630661) 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 5 ways as a sum of consecutive naturals, for example, 3105946 + ... + 3106017.

Almost surely, 2^223630668 is an apocalyptic number.

It is an amenable number.

223630668 is an abundant number, since it is smaller than the sum of its proper divisors (341658056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223630668 is a wasteful number, since it uses less digits than its factorization.

223630668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6211973 (or 6211968 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 223630668 is about 14954.2859408265. The cubic root of 223630668 is about 606.9838281768.

The spelling of 223630668 in words is "two hundred twenty-three million, six hundred thirty thousand, six hundred sixty-eight".