2818845 has 24 divisors (see below), whose sum is σ = 5021016. Its totient is φ = 1461888.

The previous prime is 2818841. The next prime is 2818853. The reversal of 2818845 is 5488182.

It can be written as a sum of positive squares in 4 ways, for example, as 622521 + 2196324 = 789^2 + 1482^2 .

It is not a de Polignac number, because 2818845 - 2² = 2818841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2818841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 819 + ... + 2511.

It is an arithmetic number, because the mean of its divisors is an integer number (209209).

2^2818845 is an apocalyptic number.

It is an amenable number.

2818845 is a deficient number, since it is larger than the sum of its proper divisors (2202171).

2818845 is a wasteful number, since it uses less digits than its factorization.

2818845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1738 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 2818845 is about 1678.9416309092. The cubic root of 2818845 is about 141.2614734722.

It can be divided in two parts, 2818 and 845, that added together give a palindrome (3663).

The spelling of 2818845 in words is "two million, eight hundred eighteen thousand, eight hundred forty-five".