2816279140 has 24 divisors (see below), whose sum is σ = 5928951672. Its totient is φ = 1123699200.

The previous prime is 2816279129. The next prime is 2816279153. The reversal of 2816279140 is 419726182.

It can be written as a sum of positive squares in 4 ways, for example, as 778298404 + 2037980736 = 27898^2 + 45144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2816279093 and 2816279102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167559 + ... + 183598.

It is an arithmetic number, because the mean of its divisors is an integer number (247039653).

Almost surely, 2^2816279140 is an apocalyptic number.

2816279140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2816279140 is an abundant number, since it is smaller than the sum of its proper divisors (3112672532).

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

2816279140 is a wasteful number, since it uses less digits than its factorization.

2816279140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351567 (or 351565 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 2816279140 is about 53068.6267016587. The cubic root of 2816279140 is about 1412.1859926946.

The spelling of 2816279140 in words is "two billion, eight hundred sixteen million, two hundred seventy-nine thousand, one hundred forty".