223425666 has 24 divisors (see below), whose sum is σ = 485497584. Its totient is φ = 74258520.

The previous prime is 223425661. The next prime is 223425673. The reversal of 223425666 is 666524322.

It is a self number, because there is not a number n which added to its sum of digits gives 223425666.

It is not an unprimeable number, because it can be changed into a prime (223425661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11640 + ... + 24131.

It is an arithmetic number, because the mean of its divisors is an integer number (20229066).

Almost surely, 2^223425666 is an apocalyptic number.

223425666 is an abundant number, since it is smaller than the sum of its proper divisors (262071918).

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

223425666 is a wasteful number, since it uses less digits than its factorization.

223425666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36126 (or 36123 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 223425666 is about 14947.4300801175. The cubic root of 223425666 is about 606.7982976594.

Adding to 223425666 its reverse (666524322), we get a palindrome (889949988).

It can be divided in two parts, 2234256 and 66, that added together give a palindrome (2234322).

The spelling of 223425666 in words is "two hundred twenty-three million, four hundred twenty-five thousand, six hundred sixty-six".