3821165238 has 32 divisors (see below), whose sum is σ = 8406006912. Its totient is φ = 1157926440.

The previous prime is 3821165213. The next prime is 3821165261. The reversal of 3821165238 is 8325611283.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3821165196 and 3821165205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231256 + ... + 247227.

It is an arithmetic number, because the mean of its divisors is an integer number (262687716).

Almost surely, 2^3821165238 is an apocalyptic number.

3821165238 is an abundant number, since it is smaller than the sum of its proper divisors (4584841674).

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

3821165238 is a wasteful number, since it uses less digits than its factorization.

3821165238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478521 (or 478499 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 3821165238 is about 61815.5743967489. The cubic root of 3821165238 is about 1563.3825951909.

The spelling of 3821165238 in words is "three billion, eight hundred twenty-one million, one hundred sixty-five thousand, two hundred thirty-eight".