3920806288 has 80 divisors (see below), whose sum is σ = 9260193024. Its totient is φ = 1569853440.

The previous prime is 3920806277. The next prime is 3920806301. The reversal of 3920806288 is 8826080293.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253333 + ... + 268363.

Almost surely, 2^3920806288 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 3920806288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4630096512).

3920806288 is an abundant number, since it is smaller than the sum of its proper divisors (5339386736).

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

3920806288 is a wasteful number, since it uses less digits than its factorization.

3920806288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15200 (or 15194 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 3920806288 is about 62616.3420202745. The cubic root of 3920806288 is about 1576.8551299899.

The spelling of 3920806288 in words is "three billion, nine hundred twenty million, eight hundred six thousand, two hundred eighty-eight".