223888365 has 12 divisors (see below), whose sum is σ = 388073244. Its totient is φ = 119407104.

The previous prime is 223888349. The next prime is 223888391. The reversal of 223888365 is 563888322.

It can be written as a sum of positive squares in 2 ways, for example, as 144072009 + 79816356 = 12003^2 + 8934^2 .

It is not a de Polignac number, because 223888365 - 2⁴ = 223888349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 4975297 = 223888365 / (2 + 2 + 3 + 8 + 8 + 8 + 3 + 6 + 5).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 223888365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2487604 + ... + 2487693.

It is an arithmetic number, because the mean of its divisors is an integer number (32339437).

Almost surely, 2^223888365 is an apocalyptic number.

It is an amenable number.

223888365 is a deficient number, since it is larger than the sum of its proper divisors (164184879).

223888365 is a wasteful number, since it uses less digits than its factorization.

223888365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975308 (or 4975305 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 223888365 is about 14962.8996187236. The cubic root of 223888365 is about 607.2168878455.

The spelling of 223888365 in words is "two hundred twenty-three million, eight hundred eighty-eight thousand, three hundred sixty-five".