2389744 has 40 divisors (see below), whose sum is σ = 5575040. Its totient is φ = 969408.

The previous prime is 2389733. The next prime is 2389747. The reversal of 2389744 is 4479832.

It is a happy number.

2389744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389747) 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, 1567 + ... + 2689.

It is an arithmetic number, because the mean of its divisors is an integer number (139376).

2^2389744 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 2389744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2787520).

2389744 is an abundant number, since it is smaller than the sum of its proper divisors (3185296).

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

2389744 is a wasteful number, since it uses less digits than its factorization.

2389744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1151 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 2389744 is about 1545.8796848397. The cubic root of 2389744 is about 133.6956036988.

The spelling of 2389744 in words is "two million, three hundred eighty-nine thousand, seven hundred forty-four".