1366618 has 8 divisors (see below), whose sum is σ = 2236320. Its totient is φ = 621180.

The previous prime is 1366609. The next prime is 1366627. The reversal of 1366618 is 8166631.

It is an interprime number because it is at equal distance from previous prime (1366609) and next prime (1366627).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1366618.

It is an unprimeable number.

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, 31038 + ... + 31081.

It is an arithmetic number, because the mean of its divisors is an integer number (279540).

2^1366618 is an apocalyptic number.

1366618 is a deficient number, since it is larger than the sum of its proper divisors (869702).

1366618 is a wasteful number, since it uses less digits than its factorization.

1366618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62132.

The product of its digits is 5184, while the sum is 31.

The square root of 1366618 is about 1169.0243795576. The cubic root of 1366618 is about 110.9725874466.

The spelling of 1366618 in words is "one million, three hundred sixty-six thousand, six hundred eighteen".