2818688 has 48 divisors (see below), whose sum is σ = 6023610. Its totient is φ = 1313280.

The previous prime is 2818687. The next prime is 2818729. The reversal of 2818688 is 8868182.

It can be written as a sum of positive squares in only one way, i.e., 2795584 + 23104 = 1672^2 + 152^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2818687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46178 + ... + 46238.

2^2818688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2818688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3011805).

2818688 is an abundant number, since it is smaller than the sum of its proper divisors (3204922).

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

2818688 is an equidigital number, since it uses as much as digits as its factorization.

2818688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 82 counting only the distinct ones).

The product of its digits is 49152, while the sum is 41.

The square root of 2818688 is about 1678.8948746125. The cubic root of 2818688 is about 141.2588508303.

The spelling of 2818688 in words is "two million, eight hundred eighteen thousand, six hundred eighty-eight".