1808082 has 20 divisors (see below), whose sum is σ = 4051806. Its totient is φ = 602640.

The previous prime is 1808077. The next prime is 1808083. The reversal of 1808082 is 2808081.

It can be written as a sum of positive squares in only one way, i.e., 1798281 + 9801 = 1341^2 + 99^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1808083) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5419 + ... + 5742.

2^1808082 is an apocalyptic number.

1808082 is an abundant number, since it is smaller than the sum of its proper divisors (2243724).

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

1808082 is a wasteful number, since it uses less digits than its factorization.

1808082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11175 (or 11166 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 1808082 is about 1344.6493966830. The cubic root of 1808082 is about 121.8258286849.

1808082 divided by its sum of digits (27) gives a palindrome (66966).

Subtracting 1808082 from its reverse (2808081), we obtain a palindrome (999999).

The spelling of 1808082 in words is "one million, eight hundred eight thousand, eighty-two".