2229785818 has 16 divisors (see below), whose sum is σ = 3636936576. Its totient is φ = 1019139120.

The previous prime is 2229785809. The next prime is 2229785819. The reversal of 2229785818 is 8185879222.

It is not an unprimeable number, because it can be changed into a prime (2229785819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413638 + ... + 418993.

It is an arithmetic number, because the mean of its divisors is an integer number (227308536).

Almost surely, 2^2229785818 is an apocalyptic number.

2229785818 is a deficient number, since it is larger than the sum of its proper divisors (1407150758).

2229785818 is a wasteful number, since it uses less digits than its factorization.

2229785818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832749.

The product of its digits is 1290240, while the sum is 52.

The square root of 2229785818 is about 47220.6079799911. The cubic root of 2229785818 is about 1306.4347276641.

The spelling of 2229785818 in words is "two billion, two hundred twenty-nine million, seven hundred eighty-five thousand, eight hundred eighteen".