223028289 has 48 divisors (see below), whose sum is σ = 382401600. Its totient is φ = 128018880.

The previous prime is 223028237. The next prime is 223028303. The reversal of 223028289 is 982820322.

It is not a de Polignac number, because 223028289 - 2⁷ = 223028161 is a prime.

It is a super-3 number, since 3×223028289³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223028209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60277 + ... + 63869.

It is an arithmetic number, because the mean of its divisors is an integer number (7966700).

Almost surely, 2^223028289 is an apocalyptic number.

It is an amenable number.

223028289 is a deficient number, since it is larger than the sum of its proper divisors (159373311).

223028289 is a wasteful number, since it uses less digits than its factorization.

223028289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643 (or 3626 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 223028289 is about 14934.1316788088. The cubic root of 223028289 is about 606.4383408311.

It can be divided in two parts, 2 and 23028289, that added together give a triangular number (23028291 = T₆₇₈₆).

The spelling of 223028289 in words is "two hundred twenty-three million, twenty-eight thousand, two hundred eighty-nine".