1218248 has 16 divisors (see below), whose sum is σ = 2298780. Its totient is φ = 605248.

The previous prime is 1218247. The next prime is 1218251. The reversal of 1218248 is 8428121.

It can be written as a sum of positive squares in 2 ways, for example, as 1214404 + 3844 = 1102^2 + 62^2 .

It is a nude number because it is divisible by every one of its digits.

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 in 3 ways as a sum of consecutive naturals, for example, 1190 + ... + 1962.

2^1218248 is an apocalyptic number.

It is an amenable number.

1218248 is a deficient number, since it is larger than the sum of its proper divisors (1080532).

1218248 is a wasteful number, since it uses less digits than its factorization.

1218248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976 (or 972 counting only the distinct ones).

The product of its digits is 1024, while the sum is 26.

The square root of 1218248 is about 1103.7427236453. The cubic root of 1218248 is about 106.8017992188.

The spelling of 1218248 in words is "one million, two hundred eighteen thousand, two hundred forty-eight".