2557884 has 48 divisors (see below), whose sum is σ = 7013888. Its totient is φ = 710208.

The previous prime is 2557879. The next prime is 2557889. The reversal of 2557884 is 4887552.

It is an interprime number because it is at equal distance from previous prime (2557879) and next prime (2557889).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2697 + ... + 3519.

2^2557884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2557884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3506944).

2557884 is an abundant number, since it is smaller than the sum of its proper divisors (4456004).

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

2557884 is a wasteful number, since it uses less digits than its factorization.

2557884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874 (or 872 counting only the distinct ones).

The product of its digits is 89600, while the sum is 39.

The square root of 2557884 is about 1599.3386133024. The cubic root of 2557884 is about 136.7603746250.

The spelling of 2557884 in words is "two million, five hundred fifty-seven thousand, eight hundred eighty-four".