11800816 has 40 divisors (see below), whose sum is σ = 23663664. Its totient is φ = 5698560.

The previous prime is 11800799. The next prime is 11800819. The reversal of 11800816 is 61800811.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11800819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104376 + ... + 104488.

Almost surely, 2^11800816 is an apocalyptic number.

11800816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11800816 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

11800816 is a wasteful number, since it uses less digits than its factorization.

11800816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 11800816 is about 3435.2315788022. The cubic root of 11800816 is about 227.6690592191.

The spelling of 11800816 in words is "eleven million, eight hundred thousand, eight hundred sixteen".