1808830136 has 32 divisors (see below), whose sum is σ = 3438936000. Its totient is φ = 891810816.

The previous prime is 1808830117. The next prime is 1808830159. The reversal of 1808830136 is 6310388081.

It is a self number, because there is not a number n which added to its sum of digits gives 1808830136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692000 + ... + 694608.

It is an arithmetic number, because the mean of its divisors is an integer number (107466750).

Almost surely, 2^1808830136 is an apocalyptic number.

It is an amenable number.

1808830136 is a deficient number, since it is larger than the sum of its proper divisors (1630105864).

1808830136 is a wasteful number, since it uses less digits than its factorization.

1808830136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791 (or 3787 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1808830136 is about 42530.3437089333. The cubic root of 1808830136 is about 1218.4262912502.

The spelling of 1808830136 in words is "one billion, eight hundred eight million, eight hundred thirty thousand, one hundred thirty-six".