4223668 has 6 divisors (see below), whose sum is σ = 7391426. Its totient is φ = 2111832.

The previous prime is 4223663. The next prime is 4223669. The reversal of 4223668 is 8663224.

4223668 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2184484 + 2039184 = 1478^2 + 1428^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527955 + ... + 527962.

Almost surely, 2^4223668 is an apocalyptic number.

It is an amenable number.

4223668 is a deficient number, since it is larger than the sum of its proper divisors (3167758).

4223668 is a wasteful number, since it uses less digits than its factorization.

4223668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055921 (or 1055919 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 4223668 is about 2055.1564417338. The cubic root of 4223668 is about 161.6453655760.

The spelling of 4223668 in words is "four million, two hundred twenty-three thousand, six hundred sixty-eight".