3994400080 has 40 divisors (see below), whose sum is σ = 10131253344. Its totient is φ = 1452508800.

The previous prime is 3994400071. The next prime is 3994400089. The reversal of 3994400080 is 800044993.

3994400080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3994400071) and next prime (3994400089).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994400089) 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, 2268666 + ... + 2270425.

Almost surely, 2^3994400080 is an apocalyptic number.

It is an amenable number.

3994400080 is an abundant number, since it is smaller than the sum of its proper divisors (6136853264).

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

3994400080 is a wasteful number, since it uses less digits than its factorization.

3994400080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539115 (or 4539109 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 3994400080 is about 63201.2664430073. The cubic root of 3994400080 is about 1586.6599294334.

The spelling of 3994400080 in words is "three billion, nine hundred ninety-four million, four hundred thousand, eighty".