4002005996 has 12 divisors (see below), whose sum is σ = 7007028000. Its totient is φ = 1999998000.

The previous prime is 4002005971. The next prime is 4002005999. The reversal of 4002005996 is 6995002004.

It is not an unprimeable number, because it can be changed into a prime (4002005999) 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, 242255 + ... + 258246.

It is an arithmetic number, because the mean of its divisors is an integer number (583919000).

Almost surely, 2^4002005996 is an apocalyptic number.

It is an amenable number.

4002005996 is a deficient number, since it is larger than the sum of its proper divisors (3005022004).

4002005996 is a wasteful number, since it uses less digits than its factorization.

4002005996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502504 (or 502502 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 4002005996 is about 63261.4100064170. The cubic root of 4002005996 is about 1587.6663676347. Note that the first 3 decimals are identical.

The spelling of 4002005996 in words is "four billion, two million, five thousand, nine hundred ninety-six".