1366822 has 8 divisors (see below), whose sum is σ = 2158200. Its totient is φ = 647424.

The previous prime is 1366801. The next prime is 1366829. The reversal of 1366822 is 2286631.

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

It is a super-3 number, since 3×1366822³ = 7660500339013332744, which contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366829) 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, 17947 + ... + 18022.

It is an arithmetic number, because the mean of its divisors is an integer number (269775).

2^1366822 is an apocalyptic number.

1366822 is a deficient number, since it is larger than the sum of its proper divisors (791378).

1366822 is a wasteful number, since it uses less digits than its factorization.

1366822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35990.

The product of its digits is 3456, while the sum is 28.

The square root of 1366822 is about 1169.1116285454. Note that the first 3 decimals coincide. The cubic root of 1366822 is about 110.9781089314.

The spelling of 1366822 in words is "one million, three hundred sixty-six thousand, eight hundred twenty-two".