12878516 has 48 divisors (see below), whose sum is σ = 27374592. Its totient is φ = 5184000.

The previous prime is 12878491. The next prime is 12878519. The reversal of 12878516 is 61587821.

Its product of digits (26880) is a multiple of the sum of its prime factors (480).

It is a self number, because there is not a number n which added to its sum of digits gives 12878516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878519) 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, 31916 + ... + 32316.

It is an arithmetic number, because the mean of its divisors is an integer number (570304).

Almost surely, 2^12878516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12878516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13687296).

12878516 is an abundant number, since it is smaller than the sum of its proper divisors (14496076).

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

12878516 is a wasteful number, since it uses less digits than its factorization.

12878516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 478 counting only the distinct ones).

The product of its digits is 26880, while the sum is 38.

The square root of 12878516 is about 3588.6649328128. The cubic root of 12878516 is about 234.3987406115.

The spelling of 12878516 in words is "twelve million, eight hundred seventy-eight thousand, five hundred sixteen".