2578648 has 16 divisors (see below), whose sum is σ = 4886280. Its totient is φ = 1275648.

The previous prime is 2578643. The next prime is 2578657. The reversal of 2578648 is 8468752.

2578648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2578648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886 + ... + 2437.

2^2578648 is an apocalyptic number.

It is an amenable number.

2578648 is a deficient number, since it is larger than the sum of its proper divisors (2307632).

2578648 is a wasteful number, since it uses less digits than its factorization.

2578648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426 (or 3422 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 2578648 is about 1605.8169260535. The cubic root of 2578648 is about 137.1294352771.

The spelling of 2578648 in words is "two million, five hundred seventy-eight thousand, six hundred forty-eight".