1236218 has 16 divisors (see below), whose sum is σ = 1941504. Its totient is φ = 589680.

The previous prime is 1236211. The next prime is 1236229. The reversal of 1236218 is 8126321.

It is a junction number, because it is equal to n+sod(n) for n = 1236193 and 1236202.

It is not an unprimeable number, because it can be changed into a prime (1236211) 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 7 ways as a sum of consecutive naturals, for example, 7796 + ... + 7952.

It is an arithmetic number, because the mean of its divisors is an integer number (121344).

2^1236218 is an apocalyptic number.

1236218 is a deficient number, since it is larger than the sum of its proper divisors (705286).

1236218 is a wasteful number, since it uses less digits than its factorization.

1236218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317.

The product of its digits is 576, while the sum is 23.

The square root of 1236218 is about 1111.8534076037. The cubic root of 1236218 is about 107.3243715968.

The spelling of 1236218 in words is "one million, two hundred thirty-six thousand, two hundred eighteen".