11816380 has 12 divisors (see below), whose sum is σ = 24814440. Its totient is φ = 4726544.

The previous prime is 11816353. The next prime is 11816381. The reversal of 11816380 is 8361811.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11816381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295390 + ... + 295429.

It is an arithmetic number, because the mean of its divisors is an integer number (2067870).

Almost surely, 2^11816380 is an apocalyptic number.

11816380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11816380 is an abundant number, since it is smaller than the sum of its proper divisors (12998060).

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

11816380 is a wasteful number, since it uses less digits than its factorization.

11816380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590828 (or 590826 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 11816380 is about 3437.4961818161. The cubic root of 11816380 is about 227.7691055371.

The spelling of 11816380 in words is "eleven million, eight hundred sixteen thousand, three hundred eighty".