2681040 has 40 divisors (see below), whose sum is σ = 8311968. Its totient is φ = 714880.

The previous prime is 2681039. The next prime is 2681059. The reversal of 2681040 is 401862.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2680998 and 2681016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5346 + ... + 5825.

2^2681040 is an apocalyptic number.

2681040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2681040 is an abundant number, since it is smaller than the sum of its proper divisors (5630928).

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

2681040 is a wasteful number, since it uses less digits than its factorization.

2681040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11187 (or 11181 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2681040 is about 1637.3881641199. The cubic root of 2681040 is about 138.9209563881.

The spelling of 2681040 in words is "two million, six hundred eighty-one thousand, forty".