3821838 has 32 divisors (see below), whose sum is σ = 8203680. Its totient is φ = 1182720.

The previous prime is 3821837. The next prime is 3821863. The reversal of 3821838 is 8381283.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3821799 and 3821808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3821837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8868 + ... + 9288.

It is an arithmetic number, because the mean of its divisors is an integer number (256365).

Almost surely, 2^3821838 is an apocalyptic number.

3821838 is an abundant number, since it is smaller than the sum of its proper divisors (4381842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3821838 is a wasteful number, since it uses less digits than its factorization.

3821838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532.

The product of its digits is 9216, while the sum is 33.

The square root of 3821838 is about 1954.9521733280. The cubic root of 3821838 is about 156.3474340563.

The spelling of 3821838 in words is "three million, eight hundred twenty-one thousand, eight hundred thirty-eight".