1813642796 has 48 divisors (see below), whose sum is σ = 3822470400. Its totient is φ = 735542208.

The previous prime is 1813642793. The next prime is 1813642811. The reversal of 1813642796 is 6972463181.

It is a self number, because there is not a number n which added to its sum of digits gives 1813642796.

It is not an unprimeable number, because it can be changed into a prime (1813642793) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 757970 + ... + 760358.

It is an arithmetic number, because the mean of its divisors is an integer number (79634800).

Almost surely, 2^1813642796 is an apocalyptic number.

It is an amenable number.

1813642796 is an abundant number, since it is smaller than the sum of its proper divisors (2008827604).

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

1813642796 is a wasteful number, since it uses less digits than its factorization.

1813642796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846 (or 3844 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 1813642796 is about 42586.8852582576. The cubic root of 1813642796 is about 1219.5059353926.

The spelling of 1813642796 in words is "one billion, eight hundred thirteen million, six hundred forty-two thousand, seven hundred ninety-six".