223219028 has 6 divisors (see below), whose sum is σ = 390633306. Its totient is φ = 111609512.

The previous prime is 223219021. The next prime is 223219033. The reversal of 223219028 is 820912322.

It can be written as a sum of positive squares in only one way, i.e., 178436164 + 44782864 = 13358^2 + 6692^2 .

It is a super-3 number, since 3×223219028³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223219021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27902375 + ... + 27902382.

It is an arithmetic number, because the mean of its divisors is an integer number (65105551).

Almost surely, 2^223219028 is an apocalyptic number.

It is an amenable number.

223219028 is a deficient number, since it is larger than the sum of its proper divisors (167414278).

223219028 is a wasteful number, since it uses less digits than its factorization.

223219028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55804761 (or 55804759 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 223219028 is about 14940.5163230726. The cubic root of 223219028 is about 606.6111716469.

The spelling of 223219028 in words is "two hundred twenty-three million, two hundred nineteen thousand, twenty-eight".