4005112 has 16 divisors (see below), whose sum is σ = 7530840. Its totient is φ = 1996896.

The previous prime is 4005091. The next prime is 4005119. The reversal of 4005112 is 2115004.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4005092 and 4005101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4005119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5098 + ... + 5830.

Almost surely, 2^4005112 is an apocalyptic number.

It is an amenable number.

4005112 is a deficient number, since it is larger than the sum of its proper divisors (3525728).

4005112 is a wasteful number, since it uses less digits than its factorization.

4005112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 4005112 is about 2001.2775919397. The cubic root of 4005112 is about 158.8076996946.

The spelling of 4005112 in words is "four million, five thousand, one hundred twelve".