1822826 has 4 divisors (see below), whose sum is σ = 2734242. Its totient is φ = 911412.

The previous prime is 1822823. The next prime is 1822837. The reversal of 1822826 is 6282281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6282281 = 263 ⋅23887.

It can be written as a sum of positive squares in only one way, i.e., 1819801 + 3025 = 1349^2 + 55^2 .

It is not an unprimeable number, because it can be changed into a prime (1822823) 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 as a sum of consecutive naturals, namely, 455705 + ... + 455708.

2^1822826 is an apocalyptic number.

1822826 is a deficient number, since it is larger than the sum of its proper divisors (911416).

1822826 is an equidigital number, since it uses as much as digits as its factorization.

1822826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911415.

The product of its digits is 3072, while the sum is 29.

The square root of 1822826 is about 1350.1207353418. The cubic root of 1822826 is about 122.1560754413.

The spelling of 1822826 in words is "one million, eight hundred twenty-two thousand, eight hundred twenty-six".