12419840 has 72 divisors (see below), whose sum is σ = 30807168. Its totient is φ = 4792320.

The previous prime is 12419837. The next prime is 12419867. The reversal of 12419840 is 4891421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39524 + ... + 39836.

Almost surely, 2^12419840 is an apocalyptic number.

12419840 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 12419840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15403584).

12419840 is an abundant number, since it is smaller than the sum of its proper divisors (18387328).

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

12419840 is an equidigital number, since it uses as much as digits as its factorization.

12419840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 12419840 is about 3524.1793370940. The cubic root of 12419840 is about 231.5822844234.

The spelling of 12419840 in words is "twelve million, four hundred nineteen thousand, eight hundred forty".