4398784 has 56 divisors (see below), whose sum is σ = 9985248. Its totient is φ = 1904640.

The previous prime is 4398769. The next prime is 4398787. The reversal of 4398784 is 4878934.

It is a self number, because there is not a number n which added to its sum of digits gives 4398784.

It is not an unprimeable number, because it can be changed into a prime (4398787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13989 + ... + 14299.

It is an arithmetic number, because the mean of its divisors is an integer number (178308).

Almost surely, 2^4398784 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 4398784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4992624).

4398784 is an abundant number, since it is smaller than the sum of its proper divisors (5586464).

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

4398784 is a wasteful number, since it uses less digits than its factorization.

4398784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 343 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 4398784 is about 2097.3278236842. The cubic root of 4398784 is about 163.8491573556.

The spelling of 4398784 in words is "four million, three hundred ninety-eight thousand, seven hundred eighty-four".