11681412 has 24 divisors (see below), whose sum is σ = 27772416. Its totient is φ = 3820128.

The previous prime is 11681399. The next prime is 11681413. The reversal of 11681412 is 21418611.

It is not an unprimeable number, because it can be changed into a prime (11681413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8548 + ... + 9819.

It is an arithmetic number, because the mean of its divisors is an integer number (1157184).

Almost surely, 2^11681412 is an apocalyptic number.

11681412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11681412 is an abundant number, since it is smaller than the sum of its proper divisors (16091004).

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

11681412 is a wasteful number, since it uses less digits than its factorization.

11681412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18427 (or 18425 counting only the distinct ones).

The product of its digits is 384, while the sum is 24.

The square root of 11681412 is about 3417.8080695089. The cubic root of 11681412 is about 226.8985813584.

The spelling of 11681412 in words is "eleven million, six hundred eighty-one thousand, four hundred twelve".