12878450 has 24 divisors (see below), whose sum is σ = 25797828. Its totient is φ = 4754880.

The previous prime is 12878431. The next prime is 12878483. The reversal of 12878450 is 5487821.

It can be written as a sum of positive squares in 6 ways, for example, as 83521 + 12794929 = 289^2 + 3577^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12878450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9257 + ... + 10556.

Almost surely, 2^12878450 is an apocalyptic number.

12878450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12878450 is an abundant number, since it is smaller than the sum of its proper divisors (12919378).

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

12878450 is a wasteful number, since it uses less digits than its factorization.

12878450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19838 (or 19833 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 12878450 is about 3588.6557371807. The cubic root of 12878450 is about 234.3983401941.

The spelling of 12878450 in words is "twelve million, eight hundred seventy-eight thousand, four hundred fifty".