3996043688 has 48 divisors (see below), whose sum is σ = 9386323380. Its totient is φ = 1580850432.

The previous prime is 3996043673. The next prime is 3996043699. The reversal of 3996043688 is 8863406993.

It can be written as a sum of positive squares in 2 ways, for example, as 3618984964 + 377058724 = 60158^2 + 19418^2 .

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 386981 + ... + 397172.

Almost surely, 2^3996043688 is an apocalyptic number.

It is an amenable number.

3996043688 is an abundant number, since it is smaller than the sum of its proper divisors (5390279692).

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

3996043688 is a wasteful number, since it uses less digits than its factorization.

3996043688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784186 (or 784175 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 56.

The square root of 3996043688 is about 63214.2680729596. The cubic root of 3996043688 is about 1586.8775248413.

The spelling of 3996043688 in words is "three billion, nine hundred ninety-six million, forty-three thousand, six hundred eighty-eight".