223213768 has 8 divisors (see below), whose sum is σ = 418525830. Its totient is φ = 111606880.

The previous prime is 223213747. The next prime is 223213777. The reversal of 223213768 is 867312322.

It can be written as a sum of positive squares in only one way, i.e., 216148804 + 7064964 = 14702^2 + 2658^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×223213768³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13950853 + ... + 13950868.

Almost surely, 2^223213768 is an apocalyptic number.

It is an amenable number.

223213768 is a deficient number, since it is larger than the sum of its proper divisors (195312062).

223213768 is a wasteful number, since it uses less digits than its factorization.

223213768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27901727 (or 27901723 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 223213768 is about 14940.3402906360. The cubic root of 223213768 is about 606.6064068204.

The spelling of 223213768 in words is "two hundred twenty-three million, two hundred thirteen thousand, seven hundred sixty-eight".