1808044 has 24 divisors (see below), whose sum is σ = 3734528. Its totient is φ = 749520.

The previous prime is 1808041. The next prime is 1808071. The reversal of 1808044 is 4408081.

It is not an unprimeable number, because it can be changed into a prime (1808041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174 + ... + 1909.

2^1808044 is an apocalyptic number.

1808044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1808044 is an abundant number, since it is smaller than the sum of its proper divisors (1926484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1808044 is a wasteful number, since it uses less digits than its factorization.

1808044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125 (or 2123 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 1808044 is about 1344.6352665314. The cubic root of 1808044 is about 121.8249752181.

The spelling of 1808044 in words is "one million, eight hundred eight thousand, forty-four".