2681868 has 36 divisors (see below), whose sum is σ = 7280952. Its totient is φ = 766080.

The previous prime is 2681863. The next prime is 2681873. The reversal of 2681868 is 8681862.

It is an interprime number because it is at equal distance from previous prime (2681863) and next prime (2681873).

It is not an unprimeable number, because it can be changed into a prime (2681863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1693 + ... + 2868.

2^2681868 is an apocalyptic number.

2681868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2681868 is an abundant number, since it is smaller than the sum of its proper divisors (4599084).

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

2681868 is a wasteful number, since it uses less digits than its factorization.

2681868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4582 (or 4573 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 2681868 is about 1637.6409862971. The cubic root of 2681868 is about 138.9352561514.

The spelling of 2681868 in words is "two million, six hundred eighty-one thousand, eight hundred sixty-eight".