2318381228 has 12 divisors (see below), whose sum is σ = 4064958072. Its totient is φ = 1156964640.

The previous prime is 2318381213. The next prime is 2318381237. The reversal of 2318381228 is 8221838132.

It is a junction number, because it is equal to n+sod(n) for n = 2318381191 and 2318381200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554150 + ... + 558317.

It is an arithmetic number, because the mean of its divisors is an integer number (338746506).

Almost surely, 2^2318381228 is an apocalyptic number.

It is an amenable number.

2318381228 is a deficient number, since it is larger than the sum of its proper divisors (1746576844).

2318381228 is a wasteful number, since it uses less digits than its factorization.

2318381228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112992 (or 1112990 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 2318381228 is about 48149.5714207302. The cubic root of 2318381228 is about 1323.5132207427.

The spelling of 2318381228 in words is "two billion, three hundred eighteen million, three hundred eighty-one thousand, two hundred twenty-eight".