1822181368 has 32 divisors (see below), whose sum is σ = 3999915360. Its totient is φ = 761886720.

The previous prime is 1822181351. The next prime is 1822181423. The reversal of 1822181368 is 8631812281.

It is a self number, because there is not a number n which added to its sum of digits gives 1822181368.

It is a congruent 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, 394521 + ... + 399112.

It is an arithmetic number, because the mean of its divisors is an integer number (124997355).

Almost surely, 2^1822181368 is an apocalyptic number.

It is an amenable number.

1822181368 is an abundant number, since it is smaller than the sum of its proper divisors (2177733992).

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

1822181368 is a wasteful number, since it uses less digits than its factorization.

1822181368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793687 (or 793683 counting only the distinct ones).

The product of its digits is 36864, while the sum is 40.

The square root of 1822181368 is about 42687.0163867188. The cubic root of 1822181368 is about 1221.4167381078.

The spelling of 1822181368 in words is "one billion, eight hundred twenty-two million, one hundred eighty-one thousand, three hundred sixty-eight".