3946435728 has 20 divisors (see below), whose sum is σ = 10194959088. Its totient is φ = 1315478560.

The previous prime is 3946435723. The next prime is 3946435729. The reversal of 3946435728 is 8275346493.

3946435728 is digitally balanced in base 2 and base 4, because in such bases 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 (3946435723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41108658 + ... + 41108753.

Almost surely, 2^3946435728 is an apocalyptic number.

It is an amenable number.

3946435728 is an abundant number, since it is smaller than the sum of its proper divisors (6248523360).

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

3946435728 is a wasteful number, since it uses less digits than its factorization.

3946435728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82217422 (or 82217416 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 51.

The square root of 3946435728 is about 62820.6632247702. The cubic root of 3946435728 is about 1580.2835211980.

The spelling of 3946435728 in words is "three billion, nine hundred forty-six million, four hundred thirty-five thousand, seven hundred twenty-eight".