1366818 has 16 divisors (see below), whose sum is σ = 2760480. Its totient is φ = 451136.

The previous prime is 1366801. The next prime is 1366829. The reversal of 1366818 is 8186631.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423 + ... + 1706.

It is an arithmetic number, because the mean of its divisors is an integer number (172530).

2^1366818 is an apocalyptic number.

1366818 is an abundant number, since it is smaller than the sum of its proper divisors (1393662).

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

1366818 is a wasteful number, since it uses less digits than its factorization.

1366818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241.

The product of its digits is 6912, while the sum is 33.

The square root of 1366818 is about 1169.1099178435. The cubic root of 1366818 is about 110.9780006723.

The spelling of 1366818 in words is "one million, three hundred sixty-six thousand, eight hundred eighteen".