1800806268 has 24 divisors (see below), whose sum is σ = 4242679168. Its totient is φ = 594440496.

The previous prime is 1800806237. The next prime is 1800806291. The reversal of 1800806268 is 8626080081.

1800806268 is nontrivially palindromic in base 11.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727246 + ... + 729717.

Almost surely, 2^1800806268 is an apocalyptic number.

It is an amenable number.

1800806268 is an abundant number, since it is smaller than the sum of its proper divisors (2441872900).

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

1800806268 is a wasteful number, since it uses less digits than its factorization.

1800806268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457073 (or 1457071 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 1800806268 is about 42435.9077668901. The cubic root of 1800806268 is about 1216.6219973675.

The spelling of 1800806268 in words is "one billion, eight hundred million, eight hundred six thousand, two hundred sixty-eight".