1218244 has 6 divisors (see below), whose sum is σ = 2131934. Its totient is φ = 609120.

The previous prime is 1218221. The next prime is 1218247. The reversal of 1218244 is 4428121.

It can be written as a sum of positive squares in only one way, i.e., 980100 + 238144 = 990^2 + 488^2 .

It is not an unprimeable number, because it can be changed into a prime (1218247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152277 + ... + 152284.

2^1218244 is an apocalyptic number.

It is an amenable number.

1218244 is a deficient number, since it is larger than the sum of its proper divisors (913690).

1218244 is a wasteful number, since it uses less digits than its factorization.

1218244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304565 (or 304563 counting only the distinct ones).

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

The square root of 1218244 is about 1103.7409116274. The cubic root of 1218244 is about 106.8016823275.

The spelling of 1218244 in words is "one million, two hundred eighteen thousand, two hundred forty-four".