4005996 has 24 divisors (see below), whose sum is σ = 9408000. Its totient is φ = 1326672.

The previous prime is 4005983. The next prime is 4006001. The reversal of 4005996 is 6995004.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005 + ... + 3003.

It is an arithmetic number, because the mean of its divisors is an integer number (392000).

Almost surely, 2^4005996 is an apocalyptic number.

It is an amenable number.

4005996 is an abundant number, since it is smaller than the sum of its proper divisors (5402004).

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

4005996 is a wasteful number, since it uses less digits than its factorization.

4005996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173 (or 2171 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 4005996 is about 2001.4984386704. The cubic root of 4005996 is about 158.8193827369.

The spelling of 4005996 in words is "four million, five thousand, nine hundred ninety-six".