3949844 has 12 divisors (see below), whose sum is σ = 6980064. Its totient is φ = 1955544.

The previous prime is 3949819. The next prime is 3949849. The reversal of 3949844 is 4489493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949849) 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, 4382 + ... + 5205.

It is an arithmetic number, because the mean of its divisors is an integer number (581672).

Almost surely, 2^3949844 is an apocalyptic number.

It is an amenable number.

3949844 is a deficient number, since it is larger than the sum of its proper divisors (3030220).

3949844 is a wasteful number, since it uses less digits than its factorization.

3949844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9694 (or 9692 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 3949844 is about 1987.4214449885. The cubic root of 3949844 is about 158.0738318613.

The spelling of 3949844 in words is "three million, nine hundred forty-nine thousand, eight hundred forty-four".