2771288 has 16 divisors (see below), whose sum is σ = 5596080. Its totient is φ = 1279008.

The previous prime is 2771281. The next prime is 2771297. The reversal of 2771288 is 8821772.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2771281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13220 + ... + 13427.

It is an arithmetic number, because the mean of its divisors is an integer number (349755).

2^2771288 is an apocalyptic number.

It is an amenable number.

2771288 is an abundant number, since it is smaller than the sum of its proper divisors (2824792).

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

2771288 is a wasteful number, since it uses less digits than its factorization.

2771288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26666 (or 26662 counting only the distinct ones).

The product of its digits is 12544, while the sum is 35.

The square root of 2771288 is about 1664.7185948382. The cubic root of 2771288 is about 140.4625517061.

The spelling of 2771288 in words is "two million, seven hundred seventy-one thousand, two hundred eighty-eight".