4005849 has 8 divisors (see below), whose sum is σ = 5382432. Its totient is φ = 2649920.

The previous prime is 4005847. The next prime is 4005889. The reversal of 4005849 is 9485004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4005849 - 2¹ = 4005847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4005847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4704 + ... + 5489.

It is an arithmetic number, because the mean of its divisors is an integer number (672804).

Almost surely, 2^4005849 is an apocalyptic number.

It is an amenable number.

4005849 is a deficient number, since it is larger than the sum of its proper divisors (1376583).

4005849 is a wasteful number, since it uses less digits than its factorization.

4005849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10327.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 4005849 is about 2001.4617158467. The cubic root of 4005849 is about 158.8174400877.

The spelling of 4005849 in words is "four million, five thousand, eight hundred forty-nine".