3994205760 has 336 divisors, whose sum is σ = 15183282816. Its totient is φ = 958611456.

The previous prime is 3994205741. The next prime is 3994205771. The reversal of 3994205760 is 675024993.

It is a happy number.

3994205760 is a `hidden beast` number, since 39 + 9 + 42 + 0 + 576 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 1124307 + ... + 1127853.

Almost surely, 2^3994205760 is an apocalyptic number.

3994205760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3994205760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7591641408).

3994205760 is an abundant number, since it is smaller than the sum of its proper divisors (11189077056).

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

3994205760 is a wasteful number, since it uses less digits than its factorization.

3994205760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610 (or 3597 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 3994205760 is about 63199.7291133435. The cubic root of 3994205760 is about 1586.6341996825.

The spelling of 3994205760 in words is "three billion, nine hundred ninety-four million, two hundred five thousand, seven hundred sixty".