3821138 has 8 divisors (see below), whose sum is σ = 5886732. Its totient is φ = 1858896.

The previous prime is 3821137. The next prime is 3821171. The reversal of 3821138 is 8311283.

3821138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3751969 + 69169 = 1937^2 + 263^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3821131) 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 3 ways as a sum of consecutive naturals, for example, 25745 + ... + 25892.

Almost surely, 2^3821138 is an apocalyptic number.

3821138 is a deficient number, since it is larger than the sum of its proper divisors (2065594).

3821138 is a wasteful number, since it uses less digits than its factorization.

3821138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51676.

The product of its digits is 1152, while the sum is 26.

The square root of 3821138 is about 1954.7731326167. The cubic root of 3821138 is about 156.3378880485.

The spelling of 3821138 in words is "three million, eight hundred twenty-one thousand, one hundred thirty-eight".