219028 has 12 divisors (see below), whose sum is σ = 405972. Its totient is φ = 103040.

The previous prime is 219019. The next prime is 219031. The reversal of 219028 is 820912.

It can be written as a sum of positive squares in 2 ways, for example, as 169744 + 49284 = 412^2 + 222^2 .

It is a congruent number.

It is an unprimeable number.

219028 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1543 + ... + 1678.

It is an arithmetic number, because the mean of its divisors is an integer number (33831).

2²¹⁹⁰²⁸ is an apocalyptic number.

It is an amenable number.

219028 is a deficient number, since it is larger than the sum of its proper divisors (186944).

219028 is a wasteful number, since it uses less digits than its factorization.

219028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242 (or 3240 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 219028 is about 468.0042734848. The cubic root of 219028 is about 60.2790703536.

The spelling of 219028 in words is "two hundred nineteen thousand, twenty-eight".