223805285 has 8 divisors (see below), whose sum is σ = 292981536. Its totient is φ = 162767440.

The previous prime is 223805269. The next prime is 223805291. The reversal of 223805285 is 582508322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 223805285 - 2⁴ = 223805269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2034539 + ... + 2034648.

It is an arithmetic number, because the mean of its divisors is an integer number (36622692).

Almost surely, 2^223805285 is an apocalyptic number.

It is an amenable number.

223805285 is a deficient number, since it is larger than the sum of its proper divisors (69176251).

223805285 is a wasteful number, since it uses less digits than its factorization.

223805285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069203.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 223805285 is about 14960.1231612577. The cubic root of 223805285 is about 607.1417703194.

It can be divided in two parts, 223 and 805285, that added together give a palindrome (805508).

The spelling of 223805285 in words is "two hundred twenty-three million, eight hundred five thousand, two hundred eighty-five".