11830140 has 144 divisors (see below), whose sum is σ = 42194880. Its totient is φ = 2626560.

The previous prime is 11830081. The next prime is 11830163. The reversal of 11830140 is 4103811.

11830140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51546 + ... + 51774.

It is an arithmetic number, because the mean of its divisors is an integer number (293020).

Almost surely, 2^11830140 is an apocalyptic number.

11830140 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 11830140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21097440).

11830140 is an abundant number, since it is smaller than the sum of its proper divisors (30364740).

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

11830140 is a wasteful number, since it uses less digits than its factorization.

11830140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 11830140 is about 3439.4970562569. The cubic root of 11830140 is about 227.8574824947.

Adding to 11830140 its reverse (4103811), we get a palindrome (15933951).

It can be divided in two parts, 118301 and 40, that added together give a triangular number (118341 = T₄₈₆).

The spelling of 11830140 in words is "eleven million, eight hundred thirty thousand, one hundred forty".