3821991282 has 96 divisors (see below), whose sum is σ = 8823140352. Its totient is φ = 1193160672.

The previous prime is 3821991263. The next prime is 3821991311. The reversal of 3821991282 is 2821991283.

It is a happy number.

3821991282 is a `hidden beast` number, since 382 + 199 + 1 + 2 + 82 = 666.

It is a super-3 number, since 3×3821991282³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6296223 + ... + 6296829.

It is an arithmetic number, because the mean of its divisors is an integer number (91907712).

Almost surely, 2^3821991282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3821991282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4411570176).

3821991282 is an abundant number, since it is smaller than the sum of its proper divisors (5001149070).

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

3821991282 is a wasteful number, since it uses less digits than its factorization.

3821991282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932 (or 929 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 3821991282 is about 61822.2555557463. The cubic root of 3821991282 is about 1563.4952423098.

Subtracting from 3821991282 its reverse (2821991283), we obtain a palindrome (999999999).

The spelling of 3821991282 in words is "three billion, eight hundred twenty-one million, nine hundred ninety-one thousand, two hundred eighty-two".