4005992 has 16 divisors (see below), whose sum is σ = 7635300. Its totient is φ = 1969920.

The previous prime is 4005983. The next prime is 4006001. The reversal of 4005992 is 2995004.

It is an interprime number because it is at equal distance from previous prime (4005983) and next prime (4006001).

It can be written as a sum of positive squares in 2 ways, for example, as 2869636 + 1136356 = 1694^2 + 1066^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3617 + ... + 4592.

Almost surely, 2^4005992 is an apocalyptic number.

It is an amenable number.

4005992 is a deficient number, since it is larger than the sum of its proper divisors (3629308).

4005992 is a wasteful number, since it uses less digits than its factorization.

4005992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8276 (or 8272 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 4005992 is about 2001.4974394188. The cubic root of 4005992 is about 158.8193298763.

The spelling of 4005992 in words is "four million, five thousand, nine hundred ninety-two".