818022 has 8 divisors (see below), whose sum is σ = 1636056. Its totient is φ = 272672.

The previous prime is 818021. The next prime is 818093. The reversal of 818022 is 220818.

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

818022 is an admirable number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 818022.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 818022.

It is not an unprimeable number, because it can be changed into a prime (818021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68163 + ... + 68174.

It is an arithmetic number, because the mean of its divisors is an integer number (204507).

2⁸¹⁸⁰²² is an apocalyptic number.

818022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

818022 is a wasteful number, since it uses less digits than its factorization.

818022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136342.

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

The square root of 818022 is about 904.4456865948. The cubic root of 818022 is about 93.5236959397.

The spelling of 818022 in words is "eight hundred eighteen thousand, twenty-two".