2002818 has 8 divisors (see below), whose sum is σ = 4005648. Its totient is φ = 667604.

The previous prime is 2002807. The next prime is 2002823. The reversal of 2002818 is 8182002.

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

2002818 is an admirable number.

It is a super-2 number, since 2×2002818² = 8022559882248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2002794 and 2002803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166896 + ... + 166907.

It is an arithmetic number, because the mean of its divisors is an integer number (500706).

2^2002818 is an apocalyptic number.

2002818 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.

2002818 is a wasteful number, since it uses less digits than its factorization.

2002818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333808.

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

The square root of 2002818 is about 1415.2095251234. The cubic root of 2002818 is about 126.0512515110.

The spelling of 2002818 in words is "two million, two thousand, eight hundred eighteen".