2273326818 has 16 divisors (see below), whose sum is σ = 5196175680. Its totient is φ = 649521936.

The previous prime is 2273326807. The next prime is 2273326859. The reversal of 2273326818 is 8186233722.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 54126829 = 2273326818 / (2 + 2 + 7 + 3 + 3 + 2 + 6 + 8 + 1 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 2273326818.

It is an unprimeable number.

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, 27063373 + ... + 27063456.

It is an arithmetic number, because the mean of its divisors is an integer number (324760980).

Almost surely, 2^2273326818 is an apocalyptic number.

2273326818 is an abundant number, since it is smaller than the sum of its proper divisors (2922848862).

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

2273326818 is a wasteful number, since it uses less digits than its factorization.

2273326818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54126841.

The product of its digits is 193536, while the sum is 42.

The square root of 2273326818 is about 47679.4171315044. The cubic root of 2273326818 is about 1314.8835488931.

The spelling of 2273326818 in words is "two billion, two hundred seventy-three million, three hundred twenty-six thousand, eight hundred eighteen".