12383140 has 144 divisors (see below), whose sum is σ = 35392896. Its totient is φ = 3548160.

The previous prime is 12383113. The next prime is 12383149. The reversal of 12383140 is 4138321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (12383149) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 287959 + ... + 288001.

It is an arithmetic number, because the mean of its divisors is an integer number (245784).

Almost surely, 2^12383140 is an apocalyptic number.

12383140 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 12383140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17696448).

12383140 is an abundant number, since it is smaller than the sum of its proper divisors (23009756).

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

12383140 is a wasteful number, since it uses less digits than its factorization.

12383140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12383140 is about 3518.9685988937. The cubic root of 12383140 is about 231.3539547227.

The spelling of 12383140 in words is "twelve million, three hundred eighty-three thousand, one hundred forty".