1808022 has 16 divisors (see below), whose sum is σ = 3629232. Its totient is φ = 600480.

The previous prime is 1808017. The next prime is 1808029. The reversal of 1808022 is 2208081.

It is a self number, because there is not a number n which added to its sum of digits gives 1808022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1808029) 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, 2968 + ... + 3524.

It is an arithmetic number, because the mean of its divisors is an integer number (226827).

2^1808022 is an apocalyptic number.

1808022 is an abundant number, since it is smaller than the sum of its proper divisors (1821210).

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

1808022 is a wasteful number, since it uses less digits than its factorization.

1808022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 1808022 is about 1344.6270858495. The cubic root of 1808022 is about 121.8244811002.

The spelling of 1808022 in words is "one million, eight hundred eight thousand, twenty-two".