2812780272 has 40 divisors (see below), whose sum is σ = 7385477200. Its totient is φ = 922222080.

The previous prime is 2812780261. The next prime is 2812780279. The reversal of 2812780272 is 2720872182.

It is a self number, because there is not a number n which added to its sum of digits gives 2812780272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2812780279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477397 + ... + 483252.

It is an arithmetic number, because the mean of its divisors is an integer number (184636930).

Almost surely, 2^2812780272 is an apocalyptic number.

It is an amenable number.

2812780272 is an abundant number, since it is smaller than the sum of its proper divisors (4572696928).

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

2812780272 is a wasteful number, since it uses less digits than its factorization.

2812780272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960721 (or 960715 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 2812780272 is about 53035.6509529203. The cubic root of 2812780272 is about 1411.6009299508.

The spelling of 2812780272 in words is "two billion, eight hundred twelve million, seven hundred eighty thousand, two hundred seventy-two".