2818820736 has 160 divisors (see below), whose sum is σ = 8528198580. Its totient is φ = 923996160.

The previous prime is 2818820713. The next prime is 2818820747. The reversal of 2818820736 is 6370288182.

It can be written as a sum of positive squares in 2 ways, for example, as 2709827136 + 108993600 = 52056^2 + 10440^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2818820691 and 2818820700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 630220 + ... + 634676.

Almost surely, 2^2818820736 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 2818820736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4264099290).

2818820736 is an abundant number, since it is smaller than the sum of its proper divisors (5709377844).

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

2818820736 is an equidigital number, since it uses as much as digits as its factorization.

2818820736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4544 (or 4523 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 2818820736 is about 53092.5676154394. The cubic root of 2818820736 is about 1412.6106815506.

The spelling of 2818820736 in words is "two billion, eight hundred eighteen million, eight hundred twenty thousand, seven hundred thirty-six".