1042218 has 12 divisors (see below), whose sum is σ = 2258178. Its totient is φ = 347400.

The previous prime is 1042211. The next prime is 1042241. The reversal of 1042218 is 8122401.

It can be written as a sum of positive squares in only one way, i.e., 986049 + 56169 = 993^2 + 237^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 57901 = 1042218 / (1 + 0 + 4 + 2 + 2 + 1 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 1042218.

It is not an unprimeable number, because it can be changed into a prime (1042211) 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 in 5 ways as a sum of consecutive naturals, for example, 28933 + ... + 28968.

2^1042218 is an apocalyptic number.

1042218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1042218 is an abundant number, since it is smaller than the sum of its proper divisors (1215960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1042218 is a wasteful number, since it uses less digits than its factorization.

1042218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57909 (or 57906 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1042218 is about 1020.8907874988. The cubic root of 1042218 is about 101.3879144823.

Adding to 1042218 its reverse (8122401), we get a palindrome (9164619).

It can be divided in two parts, 10422 and 18, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 1042218 in words is "one million, forty-two thousand, two hundred eighteen".