1023218 has 24 divisors (see below), whose sum is σ = 1828332. Its totient is φ = 428064.

The previous prime is 1023203. The next prime is 1023221. The reversal of 1023218 is 8123201.

It can be written as a sum of positive squares in 2 ways, for example, as 840889 + 182329 = 917^2 + 427^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1023196 and 1023205.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 5096 + ... + 5292.

2^1023218 is an apocalyptic number.

1023218 is a deficient number, since it is larger than the sum of its proper divisors (805114).

1023218 is a wasteful number, since it uses less digits than its factorization.

1023218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1023218 is about 1011.5423866552. The cubic root of 1023218 is about 100.7680196902.

Subtracting from 1023218 its sum of digits (17), we obtain a palindrome (1023201).

Adding to 1023218 its reverse (8123201), we get a palindrome (9146419).

The spelling of 1023218 in words is "one million, twenty-three thousand, two hundred eighteen".