11851808 has 24 divisors (see below), whose sum is σ = 24349248. Its totient is φ = 5667904.

The previous prime is 11851799. The next prime is 11851813. The reversal of 11851808 is 80815811.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7316 + ... + 8787.

It is an arithmetic number, because the mean of its divisors is an integer number (1014552).

Almost surely, 2^11851808 is an apocalyptic number.

It is an amenable number.

11851808 is an abundant number, since it is smaller than the sum of its proper divisors (12497440).

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

11851808 is a wasteful number, since it uses less digits than its factorization.

11851808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16136 (or 16128 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 32.

The square root of 11851808 is about 3442.6454943836. The cubic root of 11851808 is about 227.9965116938.

The spelling of 11851808 in words is "eleven million, eight hundred fifty-one thousand, eight hundred eight".