4399328 has 24 divisors (see below), whose sum is σ = 9171792. Its totient is φ = 2070016.

The previous prime is 4399327. The next prime is 4399331. The reversal of 4399328 is 8239934.

It is a junction number, because it is equal to n+sod(n) for n = 4399291 and 4399300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4399327) 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, 3500 + ... + 4587.

It is an arithmetic number, because the mean of its divisors is an integer number (382158).

Almost surely, 2^4399328 is an apocalyptic number.

It is an amenable number.

4399328 is an abundant number, since it is smaller than the sum of its proper divisors (4772464).

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

4399328 is a wasteful number, since it uses less digits than its factorization.

4399328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8114 (or 8106 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 4399328 is about 2097.4575085088. The cubic root of 4399328 is about 163.8559115152.

Subtracting 4399328 from its reverse (8239934), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 4399328 in words is "four million, three hundred ninety-nine thousand, three hundred twenty-eight".