2558944 has 12 divisors (see below), whose sum is σ = 5037984. Its totient is φ = 1279456.

The previous prime is 2558929. The next prime is 2558951. The reversal of 2558944 is 4498552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39952 + ... + 40015.

It is an arithmetic number, because the mean of its divisors is an integer number (419832).

2^2558944 is an apocalyptic number.

It is an amenable number.

2558944 is a deficient number, since it is larger than the sum of its proper divisors (2479040).

2558944 is an equidigital number, since it uses as much as digits as its factorization.

2558944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79977 (or 79969 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 2558944 is about 1599.6699659617. The cubic root of 2558944 is about 136.7792634118.

The spelling of 2558944 in words is "two million, five hundred fifty-eight thousand, nine hundred forty-four".