3985202808 has 96 divisors (see below), whose sum is σ = 11378127600. Its totient is φ = 1292402304.

The previous prime is 3985202783. The next prime is 3985202831. The reversal of 3985202808 is 8082025893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288966 + ... + 302442.

Almost surely, 2^3985202808 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 3985202808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5689063800).

3985202808 is an abundant number, since it is smaller than the sum of its proper divisors (7392924792).

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

3985202808 is a wasteful number, since it uses less digits than its factorization.

3985202808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13566 (or 13519 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 3985202808 is about 63128.4627406687. The cubic root of 3985202808 is about 1585.4412101193.

The spelling of 3985202808 in words is "three billion, nine hundred eighty-five million, two hundred two thousand, eight hundred eight".