2578416 has 20 divisors (see below), whose sum is σ = 6661032. Its totient is φ = 859456.

The previous prime is 2578403. The next prime is 2578417. The reversal of 2578416 is 6148752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578417) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 26811 + ... + 26906.

2^2578416 is an apocalyptic number.

It is an amenable number.

2578416 is an abundant number, since it is smaller than the sum of its proper divisors (4082616).

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

2578416 is a wasteful number, since it uses less digits than its factorization.

2578416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53728 (or 53722 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 2578416 is about 1605.7446870533. The cubic root of 2578416 is about 137.1253226590.

The spelling of 2578416 in words is "two million, five hundred seventy-eight thousand, four hundred sixteen".