223140866 has 16 divisors (see below), whose sum is σ = 368129664. Its totient is φ = 100796304.

The previous prime is 223140857. The next prime is 223140893. The reversal of 223140866 is 668041322.

It is a super-3 number, since 3×223140866³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90080 + ... + 92523.

It is an arithmetic number, because the mean of its divisors is an integer number (23008104).

Almost surely, 2^223140866 is an apocalyptic number.

223140866 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

223140866 is a deficient number, since it is larger than the sum of its proper divisors (144988798).

223140866 is a wasteful number, since it uses less digits than its factorization.

223140866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182665.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 223140866 is about 14937.9003209956. The cubic root of 223140866 is about 606.5403600648.

The spelling of 223140866 in words is "two hundred twenty-three million, one hundred forty thousand, eight hundred sixty-six".