2581484 has 12 divisors (see below), whose sum is σ = 4783464. Its totient is φ = 1214784.

The previous prime is 2581477. The next prime is 2581487. The reversal of 2581484 is 4841852.

It is a happy number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2581484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2581487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18914 + ... + 19049.

It is an arithmetic number, because the mean of its divisors is an integer number (398622).

2^2581484 is an apocalyptic number.

It is an amenable number.

2581484 is a deficient number, since it is larger than the sum of its proper divisors (2201980).

2581484 is a wasteful number, since it uses less digits than its factorization.

2581484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37984 (or 37982 counting only the distinct ones).

The product of its digits is 10240, while the sum is 32.

The square root of 2581484 is about 1606.6997230348. The cubic root of 2581484 is about 137.1796885616.

The spelling of 2581484 in words is "two million, five hundred eighty-one thousand, four hundred eighty-four".