3944039 has 16 divisors (see below), whose sum is σ = 4596480. Its totient is φ = 3346560.

The previous prime is 3944033. The next prime is 3944041. The reversal of 3944039 is 9304493.

It is a cyclic number.

It is not a de Polignac number, because 3944039 - 2²⁰ = 2895463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3943996 and 3944014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3944033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23534 + ... + 23700.

It is an arithmetic number, because the mean of its divisors is an integer number (287280).

Almost surely, 2^3944039 is an apocalyptic number.

3944039 is a deficient number, since it is larger than the sum of its proper divisors (652441).

3944039 is a wasteful number, since it uses less digits than its factorization.

3944039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 3944039 is about 1985.9604729198. The cubic root of 3944039 is about 157.9963546667.

The spelling of 3944039 in words is "three million, nine hundred forty-four thousand, thirty-nine".