3943838 has 16 divisors (see below), whose sum is σ = 6072000. Its totient is φ = 1920672.

The previous prime is 3943829. The next prime is 3943843. The reversal of 3943838 is 8383493.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17108 + ... + 17336.

It is an arithmetic number, because the mean of its divisors is an integer number (379500).

Almost surely, 2^3943838 is an apocalyptic number.

3943838 is a deficient number, since it is larger than the sum of its proper divisors (2128162).

3943838 is a wasteful number, since it uses less digits than its factorization.

3943838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419.

The product of its digits is 62208, while the sum is 38.

The square root of 3943838 is about 1985.9098670383. The cubic root of 3943838 is about 157.9936706325.

The spelling of 3943838 in words is "three million, nine hundred forty-three thousand, eight hundred thirty-eight".