11805912 has 48 divisors (see below), whose sum is σ = 33164040. Its totient is φ = 3934656.

The previous prime is 11805889. The next prime is 11805919. The reversal of 11805912 is 21950811.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11805919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1093 + ... + 4980.

Almost surely, 2^11805912 is an apocalyptic number.

11805912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11805912 is an abundant number, since it is smaller than the sum of its proper divisors (21358128).

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

11805912 is an equidigital number, since it uses as much as digits as its factorization.

11805912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094 (or 6078 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 11805912 is about 3435.9732245755. The cubic root of 11805912 is about 227.7018262910.

The spelling of 11805912 in words is "eleven million, eight hundred five thousand, nine hundred twelve".