2816144644 has 12 divisors (see below), whose sum is σ = 5098193100. Its totient is φ = 1359518048.

The previous prime is 2816144623. The next prime is 2816144651. The reversal of 2816144644 is 4464416182.

It can be written as a sum of positive squares in 2 ways, for example, as 473584644 + 2342560000 = 21762^2 + 48400^2 .

It is a super-3 number, since 3×2816144644³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2816144597 and 2816144606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12138439 + ... + 12138670.

It is an arithmetic number, because the mean of its divisors is an integer number (424849425).

Almost surely, 2^2816144644 is an apocalyptic number.

It is an amenable number.

2816144644 is a deficient number, since it is larger than the sum of its proper divisors (2282048456).

2816144644 is a wasteful number, since it uses less digits than its factorization.

2816144644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24277142 (or 24277140 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 2816144644 is about 53067.3594971523. The cubic root of 2816144644 is about 1412.1635119222.

The spelling of 2816144644 in words is "two billion, eight hundred sixteen million, one hundred forty-four thousand, six hundred forty-four".