3842897868 has 72 divisors (see below), whose sum is σ = 10157591808. Its totient is φ = 1222703328.

The previous prime is 3842897867. The next prime is 3842897873. The reversal of 3842897868 is 8687982483.

It is not an unprimeable number, because it can be changed into a prime (3842897867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 411871 + ... + 421097.

It is an arithmetic number, because the mean of its divisors is an integer number (141077664).

Almost surely, 2^3842897868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3842897868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5078795904).

3842897868 is an abundant number, since it is smaller than the sum of its proper divisors (6314693940).

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

3842897868 is a wasteful number, since it uses less digits than its factorization.

3842897868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9763 (or 9758 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 63.

The square root of 3842897868 is about 61991.1112015263. Note that the first 3 decimals coincide. The cubic root of 3842897868 is about 1566.3408730324.

The spelling of 3842897868 in words is "three billion, eight hundred forty-two million, eight hundred ninety-seven thousand, eight hundred sixty-eight".