3990218960 has 120 divisors (see below), whose sum is σ = 11622209256. Its totient is φ = 1262822400.

The previous prime is 3990218923. The next prime is 3990218977. The reversal of 3990218960 is 698120993.

It can be written as a sum of positive squares in 4 ways, for example, as 49392784 + 3940826176 = 7028^2 + 62776^2 .

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, 11810 + ... + 90110.

Almost surely, 2^3990218960 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 3990218960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5811104628).

3990218960 is an abundant number, since it is smaller than the sum of its proper divisors (7631990296).

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

3990218960 is a wasteful number, since it uses less digits than its factorization.

3990218960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78341 (or 78328 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 3990218960 is about 63168.1799642826. The cubic root of 3990218960 is about 1586.1061264854.

The spelling of 3990218960 in words is "three billion, nine hundred ninety million, two hundred eighteen thousand, nine hundred sixty".