3939384 has 64 divisors (see below), whose sum is σ = 10627200. Its totient is φ = 1213056.

The previous prime is 3939379. The next prime is 3939421. The reversal of 3939384 is 4839393.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24087 + ... + 24249.

It is an arithmetic number, because the mean of its divisors is an integer number (166050).

Almost surely, 2^3939384 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 3939384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5313600).

3939384 is an abundant number, since it is smaller than the sum of its proper divisors (6687816).

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

3939384 is a wasteful number, since it uses less digits than its factorization.

3939384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 240 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 3939384 is about 1984.7881499042. The cubic root of 3939384 is about 157.9341711563.

Subtracting 3939384 from its reverse (4839393), we obtain a palindrome (900009).

The spelling of 3939384 in words is "three million, nine hundred thirty-nine thousand, three hundred eighty-four".