2643580 has 24 divisors (see below), whose sum is σ = 5599440. Its totient is φ = 1048320.

The previous prime is 2643569. The next prime is 2643581. The reversal of 2643580 is 853462.

2643580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 2⁹ + 6² + 4¹⁰ + 3¹³ + 5³ + 8 + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2116 + ... + 3124.

It is an arithmetic number, because the mean of its divisors is an integer number (233310).

2^2643580 is an apocalyptic number.

2643580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2643580 is an abundant number, since it is smaller than the sum of its proper divisors (2955860).

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

2643580 is a wasteful number, since it uses less digits than its factorization.

2643580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2643580 is about 1625.9089765420. The cubic root of 2643580 is about 138.2709094005.

It can be divided in two parts, 2643 and 580, that added together give a palindrome (3223).

The spelling of 2643580 in words is "two million, six hundred forty-three thousand, five hundred eighty".