12004840 has 64 divisors (see below), whose sum is σ = 28512000. Its totient is φ = 4542720.

The previous prime is 12004829. The next prime is 12004847. The reversal of 12004840 is 4840021.

It is not an unprimeable number, because it can be changed into a prime (12004847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91575 + ... + 91705.

It is an arithmetic number, because the mean of its divisors is an integer number (445500).

Almost surely, 2^12004840 is an apocalyptic number.

12004840 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 12004840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14256000).

12004840 is an abundant number, since it is smaller than the sum of its proper divisors (16507160).

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

12004840 is a wasteful number, since it uses less digits than its factorization.

12004840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 12004840 is about 3464.8001385361. The cubic root of 12004840 is about 228.9736244675.

Adding to 12004840 its reverse (4840021), we get a palindrome (16844861).

The spelling of 12004840 in words is "twelve million, four thousand, eight hundred forty".