1244218 has 4 divisors (see below), whose sum is σ = 1866330. Its totient is φ = 622108.

The previous prime is 1244203. The next prime is 1244233. The reversal of 1244218 is 8124421.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1244203) and next prime (1244233).

It can be written as a sum of positive squares in only one way, i.e., 1225449 + 18769 = 1107^2 + 137^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311053 + ... + 311056.

2^1244218 is an apocalyptic number.

1244218 is a deficient number, since it is larger than the sum of its proper divisors (622112).

1244218 is an equidigital number, since it uses as much as digits as its factorization.

1244218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622111.

The product of its digits is 512, while the sum is 22.

The square root of 1244218 is about 1115.4452025985. The cubic root of 1244218 is about 107.5553851972. Note that the first 3 decimals are identical.

Adding to 1244218 its reverse (8124421), we get a palindrome (9368639).

The spelling of 1244218 in words is "one million, two hundred forty-four thousand, two hundred eighteen".