3920138 has 16 divisors (see below), whose sum is σ = 6103680. Its totient is φ = 1886976.

The previous prime is 3920131. The next prime is 3920141. The reversal of 3920138 is 8310293.

3920138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3920131) by changing a digit.

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, 6506 + ... + 7082.

It is an arithmetic number, because the mean of its divisors is an integer number (381480).

Almost surely, 2^3920138 is an apocalyptic number.

3920138 is a deficient number, since it is larger than the sum of its proper divisors (2183542).

3920138 is a wasteful number, since it uses less digits than its factorization.

3920138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 3920138 is about 1979.9338372784. The cubic root of 3920138 is about 157.6765535048.

The spelling of 3920138 in words is "three million, nine hundred twenty thousand, one hundred thirty-eight".