2681408 has 14 divisors (see below), whose sum is σ = 5321046. Its totient is φ = 1340672.

The previous prime is 2681389. The next prime is 2681417. The reversal of 2681408 is 8041862.

It can be written as a sum of positive squares in only one way, i.e., 2458624 + 222784 = 1568^2 + 472^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20885 + ... + 21012.

2^2681408 is an apocalyptic number.

It is an amenable number.

2681408 is a deficient number, since it is larger than the sum of its proper divisors (2639638).

2681408 is an equidigital number, since it uses as much as digits as its factorization.

2681408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41909 (or 41899 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 2681408 is about 1637.5005343511. The cubic root of 2681408 is about 138.9273122019.

The spelling of 2681408 in words is "two million, six hundred eighty-one thousand, four hundred eight".