1218696 has 64 divisors (see below), whose sum is σ = 3369600. Its totient is φ = 365568.

The previous prime is 1218691. The next prime is 1218709. The reversal of 1218696 is 6968121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11781 + ... + 11883.

It is an arithmetic number, because the mean of its divisors is an integer number (52650).

2^1218696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1218696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1684800).

1218696 is an abundant number, since it is smaller than the sum of its proper divisors (2150904).

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

1218696 is a wasteful number, since it uses less digits than its factorization.

1218696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 154 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 1218696 is about 1103.9456508361. The cubic root of 1218696 is about 106.8148894221.

The spelling of 1218696 in words is "one million, two hundred eighteen thousand, six hundred ninety-six".