1338218 has 16 divisors (see below), whose sum is σ = 2333184. Its totient is φ = 563760.

The previous prime is 1338217. The next prime is 1338229. The reversal of 1338218 is 8128331.

It is not an unprimeable number, because it can be changed into a prime (1338217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71 + ... + 1637.

It is an arithmetic number, because the mean of its divisors is an integer number (145824).

2^1338218 is an apocalyptic number.

1338218 is a deficient number, since it is larger than the sum of its proper divisors (994966).

1338218 is a wasteful number, since it uses less digits than its factorization.

1338218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637.

The product of its digits is 1152, while the sum is 26.

The square root of 1338218 is about 1156.8137274428. The cubic root of 1338218 is about 110.1984846131.

The spelling of 1338218 in words is "one million, three hundred thirty-eight thousand, two hundred eighteen".