3904138 has 8 divisors (see below), whose sum is σ = 6692832. Its totient is φ = 1673196.

The previous prime is 3904127. The next prime is 3904141. The reversal of 3904138 is 8314093.

3904138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 139420 + ... + 139447.

It is an arithmetic number, because the mean of its divisors is an integer number (836604).

Almost surely, 2^3904138 is an apocalyptic number.

3904138 is a deficient number, since it is larger than the sum of its proper divisors (2788694).

3904138 is a wasteful number, since it uses less digits than its factorization.

3904138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278876.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3904138 is about 1975.8891669322. The cubic root of 3904138 is about 157.4617426185.

The spelling of 3904138 in words is "three million, nine hundred four thousand, one hundred thirty-eight".