1822118 has 8 divisors (see below), whose sum is σ = 2821440. Its totient is φ = 881640.

The previous prime is 1822109. The next prime is 1822123. The reversal of 1822118 is 8112281.

It is a happy number.

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

It is a super-2 number, since 2×1822118² = 6640228011848, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1822093 and 1822102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14633 + ... + 14756.

It is an arithmetic number, because the mean of its divisors is an integer number (352680).

2^1822118 is an apocalyptic number.

1822118 is a deficient number, since it is larger than the sum of its proper divisors (999322).

1822118 is a wasteful number, since it uses less digits than its factorization.

1822118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29422.

The product of its digits is 256, while the sum is 23.

The square root of 1822118 is about 1349.8585111040. The cubic root of 1822118 is about 122.1402579321.

Adding to 1822118 its reverse (8112281), we get a palindrome (9934399).

The spelling of 1822118 in words is "one million, eight hundred twenty-two thousand, one hundred eighteen".