1819328226 has 16 divisors (see below), whose sum is σ = 3644430528. Its totient is φ = 605480400.

The previous prime is 1819328207. The next prime is 1819328239. The reversal of 1819328226 is 6228239181.

It is a Curzon number.

It is an unprimeable number.

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, 236485 + ... + 244056.

It is an arithmetic number, because the mean of its divisors is an integer number (227776908).

Almost surely, 2^1819328226 is an apocalyptic number.

1819328226 is an abundant number, since it is smaller than the sum of its proper divisors (1825102302).

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

1819328226 is a wasteful number, since it uses less digits than its factorization.

1819328226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481177.

The product of its digits is 82944, while the sum is 42.

The square root of 1819328226 is about 42653.5839760271. The cubic root of 1819328226 is about 1220.7789135945.

The spelling of 1819328226 in words is "one billion, eight hundred nineteen million, three hundred twenty-eight thousand, two hundred twenty-six".