3920384 has 80 divisors (see below), whose sum is σ = 9166080. Its totient is φ = 1658880.

The previous prime is 3920383. The next prime is 3920401. The reversal of 3920384 is 4830293.

It is not an unprimeable number, because it can be changed into a prime (3920383) 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, 126449 + ... + 126479.

It is an arithmetic number, because the mean of its divisors is an integer number (114576).

Almost surely, 2^3920384 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 3920384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4583040).

3920384 is an abundant number, since it is smaller than the sum of its proper divisors (5245696).

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

3920384 is a wasteful number, since it uses less digits than its factorization.

3920384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 3920384 is about 1979.9959595918. The cubic root of 3920384 is about 157.6798516557.

Subtracting 3920384 from its reverse (4830293), we obtain a palindrome (909909).

The spelling of 3920384 in words is "three million, nine hundred twenty thousand, three hundred eighty-four".