12183040 has 40 divisors (see below), whose sum is σ = 29216880. Its totient is φ = 4872192.

The previous prime is 12183023. The next prime is 12183049. The reversal of 12183040 is 4038121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 12182999 and 12183017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12183049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181 + ... + 4939.

It is an arithmetic number, because the mean of its divisors is an integer number (730422).

Almost surely, 2^12183040 is an apocalyptic number.

12183040 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 12183040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14608440).

12183040 is an abundant number, since it is smaller than the sum of its proper divisors (17033840).

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

12183040 is an frugal number, since it uses more digits than its factorization.

12183040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782 (or 4766 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 12183040 is about 3490.4211780242. The cubic root of 12183040 is about 230.1010268213.

The spelling of 12183040 in words is "twelve million, one hundred eighty-three thousand, forty".