2541644 has 24 divisors (see below), whose sum is σ = 5203968. Its totient is φ = 1063440.

The previous prime is 2541613. The next prime is 2541677. The reversal of 2541644 is 4461452.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149 + ... + 2259.

It is an arithmetic number, because the mean of its divisors is an integer number (216832).

2^2541644 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 2541644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2601984).

2541644 is an abundant number, since it is smaller than the sum of its proper divisors (2662324).

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

2541644 is a wasteful number, since it uses less digits than its factorization.

2541644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165 (or 2163 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 2541644 is about 1594.2534302927. The cubic root of 2541644 is about 136.4703294830.

The spelling of 2541644 in words is "two million, five hundred forty-one thousand, six hundred forty-four".