3994375780 has 24 divisors (see below), whose sum is σ = 8583265152. Its totient is φ = 1560592992.

The previous prime is 3994375769. The next prime is 3994375787. The reversal of 3994375780 is 875734993.

It is a happy number.

3994375780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3994375787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2321452 + ... + 2323171.

It is an arithmetic number, because the mean of its divisors is an integer number (357636048).

Almost surely, 2^3994375780 is an apocalyptic number.

It is an amenable number.

3994375780 is an abundant number, since it is smaller than the sum of its proper divisors (4588889372).

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

3994375780 is a wasteful number, since it uses less digits than its factorization.

3994375780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4644675 (or 4644673 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 55.

The square root of 3994375780 is about 63201.0741997318. The cubic root of 3994375780 is about 1586.6567119361.

The spelling of 3994375780 in words is "three billion, nine hundred ninety-four million, three hundred seventy-five thousand, seven hundred eighty".