2680904 has 8 divisors (see below), whose sum is σ = 5026710. Its totient is φ = 1340448.

The previous prime is 2680897. The next prime is 2680907. The reversal of 2680904 is 4090862.

It can be written as a sum of positive squares in only one way, i.e., 2592100 + 88804 = 1610^2 + 298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2680907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167549 + ... + 167564.

2^2680904 is an apocalyptic number.

It is an amenable number.

2680904 is a deficient number, since it is larger than the sum of its proper divisors (2345806).

2680904 is a wasteful number, since it uses less digits than its factorization.

2680904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335119 (or 335115 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2680904 is about 1637.3466340394. The cubic root of 2680904 is about 138.9186073532.

The spelling of 2680904 in words is "two million, six hundred eighty thousand, nine hundred four".