2049403806 has 12 divisors (see below), whose sum is σ = 4440374952. Its totient is φ = 683134596.

The previous prime is 2049403789. The next prime is 2049403817. The reversal of 2049403806 is 6083049402.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56927866 + ... + 56927901.

It is an arithmetic number, because the mean of its divisors is an integer number (370031246).

Almost surely, 2^2049403806 is an apocalyptic number.

2049403806 is an abundant number, since it is smaller than the sum of its proper divisors (2390971146).

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

2049403806 is a wasteful number, since it uses less digits than its factorization.

2049403806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113855775 (or 113855772 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 2049403806 is about 45270.3413506017. The cubic root of 2049403806 is about 1270.2109319600.

The spelling of 2049403806 in words is "two billion, forty-nine million, four hundred three thousand, eight hundred six".