1356826 has 4 divisors (see below), whose sum is σ = 2035242. Its totient is φ = 678412.

The previous prime is 1356811. The next prime is 1356829. The reversal of 1356826 is 6286531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1334025 + 22801 = 1155^2 + 151^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1356829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339205 + ... + 339208.

2^1356826 is an apocalyptic number.

1356826 is a deficient number, since it is larger than the sum of its proper divisors (678416).

1356826 is an equidigital number, since it uses as much as digits as its factorization.

1356826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678415.

The product of its digits is 8640, while the sum is 31.

The square root of 1356826 is about 1164.8287427772. The cubic root of 1356826 is about 110.7069074316.

The spelling of 1356826 in words is "one million, three hundred fifty-six thousand, eight hundred twenty-six".