1808116 has 24 divisors (see below), whose sum is σ = 3426080. Its totient is φ = 832032.

The previous prime is 1808089. The next prime is 1808117. The reversal of 1808116 is 6118081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1808117) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2491 + ... + 3133.

2^1808116 is an apocalyptic number.

It is an amenable number.

1808116 is a deficient number, since it is larger than the sum of its proper divisors (1617964).

1808116 is a wasteful number, since it uses less digits than its factorization.

1808116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 1808116 is about 1344.6620393244. The cubic root of 1808116 is about 121.8265923029.

The spelling of 1808116 in words is "one million, eight hundred eight thousand, one hundred sixteen".