12873420 has 144 divisors (see below), whose sum is σ = 47331648. Its totient is φ = 2764800.

The previous prime is 12873409. The next prime is 12873433. The reversal of 12873420 is 2437821.

12873420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21120 + ... + 21720.

It is an arithmetic number, because the mean of its divisors is an integer number (328692).

Almost surely, 2^12873420 is an apocalyptic number.

12873420 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 12873420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23665824).

12873420 is an abundant number, since it is smaller than the sum of its proper divisors (34458228).

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

12873420 is a wasteful number, since it uses less digits than its factorization.

12873420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 12873420 is about 3587.9548492142. The cubic root of 12873420 is about 234.3678195133.

The spelling of 12873420 in words is "twelve million, eight hundred seventy-three thousand, four hundred twenty".