2681816 has 16 divisors (see below), whose sum is σ = 5051040. Its totient is φ = 1334880.

The previous prime is 2681807. The next prime is 2681827. The reversal of 2681816 is 6181862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1550 + ... + 2786.

It is an arithmetic number, because the mean of its divisors is an integer number (315690).

2^2681816 is an apocalyptic number.

It is an amenable number.

2681816 is a deficient number, since it is larger than the sum of its proper divisors (2369224).

2681816 is a wasteful number, since it uses less digits than its factorization.

2681816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514 (or 1510 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 2681816 is about 1637.6251097244. The cubic root of 2681816 is about 138.9343581853.

The spelling of 2681816 in words is "two million, six hundred eighty-one thousand, eight hundred sixteen".