1318868 has 6 divisors (see below), whose sum is σ = 2308026. Its totient is φ = 659432.

The previous prime is 1318861. The next prime is 1318879. The reversal of 1318868 is 8688131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1227664 + 91204 = 1108^2 + 302^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318861) 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 as a sum of consecutive naturals, namely, 164855 + ... + 164862.

It is an arithmetic number, because the mean of its divisors is an integer number (384671).

2^1318868 is an apocalyptic number.

It is an amenable number.

1318868 is a deficient number, since it is larger than the sum of its proper divisors (989158).

1318868 is a wasteful number, since it uses less digits than its factorization.

1318868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329721 (or 329719 counting only the distinct ones).

The product of its digits is 9216, while the sum is 35.

The square root of 1318868 is about 1148.4197838770. The cubic root of 1318868 is about 109.6647644996.

It can be divided in two parts, 13 and 18868, that added together give a palindrome (18881).

The spelling of 1318868 in words is "one million, three hundred eighteen thousand, eight hundred sixty-eight".