223009668 has 36 divisors (see below), whose sum is σ = 644250880. Its totient is φ = 63716976.

The previous prime is 223009667. The next prime is 223009687. The reversal of 223009668 is 866900322.

223009668 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (223009663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 442228 + ... + 442731.

Almost surely, 2^223009668 is an apocalyptic number.

223009668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

223009668 is an abundant number, since it is smaller than the sum of its proper divisors (421241212).

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

223009668 is a wasteful number, since it uses less digits than its factorization.

223009668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884976 (or 884971 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 223009668 is about 14933.5082281425. The cubic root of 223009668 is about 606.4214628487.

The spelling of 223009668 in words is "two hundred twenty-three million, nine thousand, six hundred sixty-eight".