2604656 has 10 divisors (see below), whose sum is σ = 5046552. Its totient is φ = 1302320.

The previous prime is 2604647. The next prime is 2604661. The reversal of 2604656 is 6564062.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81380 + ... + 81411.

2^2604656 is an apocalyptic number.

It is an amenable number.

2604656 is a deficient number, since it is larger than the sum of its proper divisors (2441896).

2604656 is a wasteful number, since it uses less digits than its factorization.

2604656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162799 (or 162793 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2604656 is about 1613.8946681862. The cubic root of 2604656 is about 137.5889187939.

The spelling of 2604656 in words is "two million, six hundred four thousand, six hundred fifty-six".