2578784 has 24 divisors (see below), whose sum is σ = 5468400. Its totient is φ = 1190016.

The previous prime is 2578759. The next prime is 2578787. The reversal of 2578784 is 4878752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578787) 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, 2684 + ... + 3515.

It is an arithmetic number, because the mean of its divisors is an integer number (227850).

2^2578784 is an apocalyptic number.

It is an amenable number.

2578784 is an abundant number, since it is smaller than the sum of its proper divisors (2889616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2578784 is a wasteful number, since it uses less digits than its factorization.

2578784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6222 (or 6214 counting only the distinct ones).

The product of its digits is 125440, while the sum is 41.

The square root of 2578784 is about 1605.8592715428. The cubic root of 2578784 is about 137.1318460075.

Subtracting 2578784 from its reverse (4878752), we obtain a cube (2299968 = 132³).

The spelling of 2578784 in words is "two million, five hundred seventy-eight thousand, seven hundred eighty-four".