1868168 has 16 divisors (see below), whose sum is σ = 3519180. Its totient is φ = 929728.

The previous prime is 1868159. The next prime is 1868173. The reversal of 1868168 is 8618681.

It can be written as a sum of positive squares in 2 ways, for example, as 1737124 + 131044 = 1318^2 + 362^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1946 + ... + 2742.

2^1868168 is an apocalyptic number.

It is an amenable number.

1868168 is a deficient number, since it is larger than the sum of its proper divisors (1651012).

1868168 is a wasteful number, since it uses less digits than its factorization.

1868168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096 (or 1092 counting only the distinct ones).

The product of its digits is 18432, while the sum is 38.

The square root of 1868168 is about 1366.8094234384. The cubic root of 1868168 is about 123.1606511207.

It can be divided in two parts, 18 and 68168, that added together give a palindrome (68186).

The spelling of 1868168 in words is "one million, eight hundred sixty-eight thousand, one hundred sixty-eight".