1366888 has 16 divisors (see below), whose sum is σ = 2605860. Its totient is φ = 672000.

The previous prime is 1366877. The next prime is 1366889. The reversal of 1366888 is 8886631.

It can be written as a sum of positive squares in 2 ways, for example, as 1249924 + 116964 = 1118^2 + 342^2 .

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1366888.

It is not an unprimeable number, because it can be changed into a prime (1366889) 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 in 3 ways as a sum of consecutive naturals, for example, 913 + ... + 1888.

2^1366888 is an apocalyptic number.

It is an amenable number.

1366888 is a deficient number, since it is larger than the sum of its proper divisors (1238972).

1366888 is a wasteful number, since it uses less digits than its factorization.

1366888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868 (or 2864 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 1366888 is about 1169.1398547650. The cubic root of 1366888 is about 110.9798951765.

The spelling of 1366888 in words is "one million, three hundred sixty-six thousand, eight hundred eighty-eight".