223443966 has 16 divisors (see below), whose sum is σ = 449136000. Its totient is φ = 74106648.

The previous prime is 223443959. The next prime is 223443967. The reversal of 223443966 is 669344322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223443967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92376 + ... + 94763.

It is an arithmetic number, because the mean of its divisors is an integer number (28071000).

Almost surely, 2^223443966 is an apocalyptic number.

223443966 is an abundant number, since it is smaller than the sum of its proper divisors (225692034).

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

223443966 is a wasteful number, since it uses less digits than its factorization.

223443966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187343.

The product of its digits is 186624, while the sum is 39.

The square root of 223443966 is about 14948.0422129455. The cubic root of 223443966 is about 606.8148641024.

The spelling of 223443966 in words is "two hundred twenty-three million, four hundred forty-three thousand, nine hundred sixty-six".