2006641 has 8 divisors (see below), whose sum is σ = 2469824. Its totient is φ = 1587600.

The previous prime is 2006623. The next prime is 2006651. The reversal of 2006641 is 1466002.

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

It is not a de Polignac number, because 2006641 - 2¹¹ = 2004593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2006611) 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 7 ways as a sum of consecutive naturals, for example, 10935 + ... + 11116.

It is an arithmetic number, because the mean of its divisors is an integer number (308728).

2^2006641 is an apocalyptic number.

It is an amenable number.

2006641 is a deficient number, since it is larger than the sum of its proper divisors (463183).

2006641 is a wasteful number, since it uses less digits than its factorization.

2006641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22071.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2006641 is about 1416.5595645789. The cubic root of 2006641 is about 126.1314031847.

The spelling of 2006641 in words is "two million, six thousand, six hundred forty-one".