3941990 has 16 divisors (see below), whose sum is σ = 7641648. Its totient is φ = 1455456.

The previous prime is 3941969. The next prime is 3942007. The reversal of 3941990 is 991493.

3941990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3941990.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15032 + ... + 15291.

It is an arithmetic number, because the mean of its divisors is an integer number (477603).

Almost surely, 2^3941990 is an apocalyptic number.

3941990 is a deficient number, since it is larger than the sum of its proper divisors (3699658).

3941990 is a wasteful number, since it uses less digits than its factorization.

3941990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30343.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 3941990 is about 1985.4445346068. Note that the first 3 decimals coincide. The cubic root of 3941990 is about 157.9689892672.

The spelling of 3941990 in words is "three million, nine hundred forty-one thousand, nine hundred ninety".