2401806 has 32 divisors (see below), whose sum is σ = 5296896. Its totient is φ = 720000.

The previous prime is 2401741. The next prime is 2401807. The reversal of 2401806 is 6081042.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2401807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9846 + ... + 10086.

It is an arithmetic number, because the mean of its divisors is an integer number (165528).

2^2401806 is an apocalyptic number.

2401806 is an abundant number, since it is smaller than the sum of its proper divisors (2895090).

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

2401806 is a wasteful number, since it uses less digits than its factorization.

2401806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2401806 is about 1549.7761128628. The cubic root of 2401806 is about 133.9201648158.

Adding to 2401806 its reverse (6081042), we get a palindrome (8482848).

The spelling of 2401806 in words is "two million, four hundred one thousand, eight hundred six".