1267218 has 32 divisors (see below), whose sum is σ = 2910720. Its totient is φ = 408240.

The previous prime is 1267199. The next prime is 1267223. The reversal of 1267218 is 8127621.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1267191 and 1267200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1296 + ... + 2052.

It is an arithmetic number, because the mean of its divisors is an integer number (90960).

2^1267218 is an apocalyptic number.

1267218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1267218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1455360).

1267218 is an abundant number, since it is smaller than the sum of its proper divisors (1643502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1267218 is a wasteful number, since it uses less digits than its factorization.

1267218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 793 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 1267218 is about 1125.7077773561. The cubic root of 1267218 is about 108.2140815322.

It can be divided in two parts, 1267 and 218, that added together give a triangular number (1485 = T₅₄).

The spelling of 1267218 in words is "one million, two hundred sixty-seven thousand, two hundred eighteen".