2768868 has 18 divisors (see below), whose sum is σ = 6999174. Its totient is φ = 922944.

The previous prime is 2768863. The next prime is 2768873. The reversal of 2768868 is 8688672.

It is an interprime number because it is at equal distance from previous prime (2768863) and next prime (2768873).

It can be written as a sum of positive squares in only one way, i.e., 2490084 + 278784 = 1578^2 + 528^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (2768863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38421 + ... + 38492.

It is an arithmetic number, because the mean of its divisors is an integer number (388843).

2^2768868 is an apocalyptic number.

It is an amenable number.

2768868 is an abundant number, since it is smaller than the sum of its proper divisors (4230306).

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

2768868 is a wasteful number, since it uses less digits than its factorization.

2768868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76923 (or 76918 counting only the distinct ones).

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

The square root of 2768868 is about 1663.9915865172. The cubic root of 2768868 is about 140.4216539519.

The spelling of 2768868 in words is "two million, seven hundred sixty-eight thousand, eight hundred sixty-eight".