11816440 has 16 divisors (see below), whose sum is σ = 26587080. Its totient is φ = 4726560.

The previous prime is 11816417. The next prime is 11816447. The reversal of 11816440 is 4461811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11816447) 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, 147666 + ... + 147745.

Almost surely, 2^11816440 is an apocalyptic number.

11816440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11816440 is an abundant number, since it is smaller than the sum of its proper divisors (14770640).

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

11816440 is a wasteful number, since it uses less digits than its factorization.

11816440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295422 (or 295418 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 11816440 is about 3437.5049090874. The cubic root of 11816440 is about 227.7694910507.

The spelling of 11816440 in words is "eleven million, eight hundred sixteen thousand, four hundred forty".