2578944 has 80 divisors (see below), whose sum is σ = 7267392. Its totient is φ = 811008.

The previous prime is 2578943. The next prime is 2578963. The reversal of 2578944 is 4498752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35292 + ... + 35364.

2^2578944 is an apocalyptic number.

2578944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2578944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3633696).

2578944 is an abundant number, since it is smaller than the sum of its proper divisors (4688448).

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

2578944 is an equidigital number, since it uses as much as digits as its factorization.

2578944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 101 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 2578944 is about 1605.9090883359. The cubic root of 2578944 is about 137.1346820524.

The spelling of 2578944 in words is "two million, five hundred seventy-eight thousand, nine hundred forty-four".