11819340 has 72 divisors (see below), whose sum is σ = 38617488. Its totient is φ = 2908800.

The previous prime is 11819333. The next prime is 11819347. The reversal of 11819340 is 4391811.

It is an interprime number because it is at equal distance from previous prime (11819333) and next prime (11819347).

It is not an unprimeable number, because it can be changed into a prime (11819347) 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 23 ways as a sum of consecutive naturals, for example, 186 + ... + 4865.

It is an arithmetic number, because the mean of its divisors is an integer number (536354).

Almost surely, 2^11819340 is an apocalyptic number.

11819340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11819340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19308744).

11819340 is an abundant number, since it is smaller than the sum of its proper divisors (26798148).

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

11819340 is a wasteful number, since it uses less digits than its factorization.

11819340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5079 (or 5074 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 11819340 is about 3437.9267007893. The cubic root of 11819340 is about 227.7881226491.

The spelling of 11819340 in words is "eleven million, eight hundred nineteen thousand, three hundred forty".