3939424 has 24 divisors (see below), whose sum is σ = 7800408. Its totient is φ = 1958400.

The previous prime is 3939421. The next prime is 3939433. The reversal of 3939424 is 4249393.

It is a super-2 number, since 2×3939424² = 31038122903552, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3 + 9² + 3³ + 9⁶ + 4⁹ + 2²¹ + 4¹⁰ .

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 3939424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9624 + ... + 10024.

It is an arithmetic number, because the mean of its divisors is an integer number (325017).

Almost surely, 2^3939424 is an apocalyptic number.

It is an amenable number.

3939424 is a deficient number, since it is larger than the sum of its proper divisors (3860984).

3939424 is a wasteful number, since it uses less digits than its factorization.

3939424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718 (or 710 counting only the distinct ones).

The product of its digits is 23328, while the sum is 34.

The square root of 3939424 is about 1984.7982265208. The cubic root of 3939424 is about 157.9347057022.

The spelling of 3939424 in words is "three million, nine hundred thirty-nine thousand, four hundred twenty-four".