2604688 has 20 divisors (see below), whose sum is σ = 5081148. Its totient is φ = 1293440.

The previous prime is 2604683. The next prime is 2604703. The reversal of 2604688 is 8864062.

It can be written as a sum of positive squares in 2 ways, for example, as 2039184 + 565504 = 1428^2 + 752^2 .

It is not an unprimeable number, because it can be changed into a prime (2604683) 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, 2298 + ... + 3238.

2^2604688 is an apocalyptic number.

It is an amenable number.

2604688 is a deficient number, since it is larger than the sum of its proper divisors (2476460).

2604688 is a wasteful number, since it uses less digits than its factorization.

2604688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 2604688 is about 1613.9045820618. The cubic root of 2604688 is about 137.5894822500.

The spelling of 2604688 in words is "two million, six hundred four thousand, six hundred eighty-eight".