2489984 has 48 divisors (see below), whose sum is σ = 5784930. Its totient is φ = 1064448.

The previous prime is 2489947. The next prime is 2489999. The reversal of 2489984 is 4899842.

It is a happy number.

2489984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1960000 + 529984 = 1400^2 + 728^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 6074 + ... + 6470.

2^2489984 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 2489984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2892465).

2489984 is an abundant number, since it is smaller than the sum of its proper divisors (3294946).

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

2489984 is an equidigital number, since it uses as much as digits as its factorization.

2489984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 406 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 2489984 is about 1577.9683140038. The cubic root of 2489984 is about 135.5393875229.

The spelling of 2489984 in words is "two million, four hundred eighty-nine thousand, nine hundred eighty-four".