2813818 has 8 divisors (see below), whose sum is σ = 4823712. Its totient is φ = 1205916.

The previous prime is 2813809. The next prime is 2813819. The reversal of 2813818 is 8183182.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2813818.

It is not an unprimeable number, because it can be changed into a prime (2813819) 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, 100480 + ... + 100507.

It is an arithmetic number, because the mean of its divisors is an integer number (602964).

2^2813818 is an apocalyptic number.

2813818 is a deficient number, since it is larger than the sum of its proper divisors (2009894).

2813818 is a wasteful number, since it uses less digits than its factorization.

2813818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200996.

The product of its digits is 3072, while the sum is 31.

The square root of 2813818 is about 1677.4438887784. The cubic root of 2813818 is about 141.1774504085.

The spelling of 2813818 in words is "two million, eight hundred thirteen thousand, eight hundred eighteen".