2398784 has 28 divisors (see below), whose sum is σ = 4893564. Its totient is φ = 1165824.

The previous prime is 2398777. The next prime is 2398789. The reversal of 2398784 is 4878932.

It can be written as a sum of positive squares in 2 ways, for example, as 861184 + 1537600 = 928^2 + 1240^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2398789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862 + ... + 2874.

2^2398784 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 2398784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2446782).

2398784 is an abundant number, since it is smaller than the sum of its proper divisors (2494780).

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

2398784 is a wasteful number, since it uses less digits than its factorization.

2398784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062 (or 1052 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 2398784 is about 1548.8008264461. The cubic root of 2398784 is about 133.8639742390.

The spelling of 2398784 in words is "two million, three hundred ninety-eight thousand, seven hundred eighty-four".