12080240 has 80 divisors (see below), whose sum is σ = 29998080. Its totient is φ = 4515840.

The previous prime is 12080239. The next prime is 12080261. The reversal of 12080240 is 4208021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95057 + ... + 95183.

It is an arithmetic number, because the mean of its divisors is an integer number (374976).

Almost surely, 2^12080240 is an apocalyptic number.

12080240 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 12080240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14999040).

12080240 is an abundant number, since it is smaller than the sum of its proper divisors (17917840).

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

12080240 is a wasteful number, since it uses less digits than its factorization.

12080240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 12080240 is about 3475.6639653453. The cubic root of 12080240 is about 229.4520035127.

Adding to 12080240 its reverse (4208021), we get a palindrome (16288261).

The spelling of 12080240 in words is "twelve million, eighty thousand, two hundred forty".