2223668 has 24 divisors (see below), whose sum is σ = 4204872. Its totient is φ = 1025024.

The previous prime is 2223631. The next prime is 2223671. The reversal of 2223668 is 8663222.

2223668 is digitally balanced in base 2, 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 4 ways, for example, as 258064 + 1965604 = 508^2 + 1402^2 .

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 2223668.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3296 + ... + 3912.

It is an arithmetic number, because the mean of its divisors is an integer number (175203).

2^2223668 is an apocalyptic number.

It is an amenable number.

2223668 is a deficient number, since it is larger than the sum of its proper divisors (1981204).

2223668 is a wasteful number, since it uses less digits than its factorization.

2223668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 689 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 2223668 is about 1491.1968347606. The cubic root of 2223668 is about 130.5238820470.

The spelling of 2223668 in words is "two million, two hundred twenty-three thousand, six hundred sixty-eight".