1028218 has 8 divisors (see below), whose sum is σ = 1546848. Its totient is φ = 512604.

The previous prime is 1028213. The next prime is 1028221. The reversal of 1028218 is 8128201.

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

It is not an unprimeable number, because it can be changed into a prime (1028213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555 + ... + 1537.

It is an arithmetic number, because the mean of its divisors is an integer number (193356).

2^1028218 is an apocalyptic number.

1028218 is a deficient number, since it is larger than the sum of its proper divisors (518630).

1028218 is an equidigital number, since it uses as much as digits as its factorization.

1028218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 1028218 is about 1014.0108480682. The cubic root of 1028218 is about 100.9318888560.

Subtracting from 1028218 its sum of digits (22), we obtain a square (1028196 = 1014²).

The spelling of 1028218 in words is "one million, twenty-eight thousand, two hundred eighteen".