2580344 has 32 divisors (see below), whose sum is σ = 5340720. Its totient is φ = 1161216.

The previous prime is 2580341. The next prime is 2580401. The reversal of 2580344 is 4430852.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2580341) 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, 4184 + ... + 4760.

2^2580344 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 2580344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2670360).

2580344 is an abundant number, since it is smaller than the sum of its proper divisors (2760376).

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

2580344 is a wasteful number, since it uses less digits than its factorization.

2580344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 635 counting only the distinct ones).

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

The square root of 2580344 is about 1606.3449193744. The cubic root of 2580344 is about 137.1594924431.

The spelling of 2580344 in words is "two million, five hundred eighty thousand, three hundred forty-four".