1226218 has 8 divisors (see below), whose sum is σ = 2102112. Its totient is φ = 525516.

The previous prime is 1226213. The next prime is 1226237. The reversal of 1226218 is 8126221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1226218² = 3007221167048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1226213) 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, 43780 + ... + 43807.

It is an arithmetic number, because the mean of its divisors is an integer number (262764).

2^1226218 is an apocalyptic number.

1226218 is a deficient number, since it is larger than the sum of its proper divisors (875894).

1226218 is an equidigital number, since it uses as much as digits as its factorization.

1226218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87596.

The product of its digits is 384, while the sum is 22.

The square root of 1226218 is about 1107.3472806667. The cubic root of 1226218 is about 107.0341987519.

It can be divided in two parts, 1226 and 218, that added together give a square (1444 = 38²).

The spelling of 1226218 in words is "one million, two hundred twenty-six thousand, two hundred eighteen".