223306337809 has 9 divisors (see below), whose sum is σ = 223991269257. Its totient is φ = 222623498724.

The previous prime is 223306337767. The next prime is 223306337893. The reversal of 223306337809 is 908733603322.

The square root of 223306337809 is 472553.

It is a perfect power (a square), and thus also a powerful number.

223306337809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 223306337809 - 2¹⁷ = 223306206737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223306337509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 235803474 + ... + 235804420.

Almost surely, 2^223306337809 is an apocalyptic number.

223306337809 is the 472553-rd square number.

223306337809 is the 236277-th centered octagonal number.

It is an amenable number.

223306337809 is a deficient number, since it is larger than the sum of its proper divisors (684931448).

223306337809 is an frugal number, since it uses more digits than its factorization.

223306337809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2892 (or 1446 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 46.

The spelling of 223306337809 in words is "two hundred twenty-three billion, three hundred six million, three hundred thirty-seven thousand, eight hundred nine".