2681860 has 12 divisors (see below), whose sum is σ = 5631948. Its totient is φ = 1072736.

The previous prime is 2681857. The next prime is 2681863. The reversal of 2681860 is 681862.

It is an interprime number because it is at equal distance from previous prime (2681857) and next prime (2681863).

It can be written as a sum of positive squares in 2 ways, for example, as 1633284 + 1048576 = 1278^2 + 1024^2 .

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 3 ways as a sum of consecutive naturals, for example, 67027 + ... + 67066.

It is an arithmetic number, because the mean of its divisors is an integer number (469329).

2^2681860 is an apocalyptic number.

2681860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2681860 is an abundant number, since it is smaller than the sum of its proper divisors (2950088).

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

2681860 is a wasteful number, since it uses less digits than its factorization.

2681860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134102 (or 134100 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2681860 is about 1637.6385437574. The cubic root of 2681860 is about 138.9351180035.

The spelling of 2681860 in words is "two million, six hundred eighty-one thousand, eight hundred sixty".