12378208 has 24 divisors (see below), whose sum is σ = 24517080. Its totient is φ = 6151680.

The previous prime is 12378199. The next prime is 12378241. The reversal of 12378208 is 80287321.

It is a self number, because there is not a number n which added to its sum of digits gives 12378208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4648 + ... + 6808.

It is an arithmetic number, because the mean of its divisors is an integer number (1021545).

Almost surely, 2^12378208 is an apocalyptic number.

It is an amenable number.

12378208 is a deficient number, since it is larger than the sum of its proper divisors (12138872).

12378208 is a wasteful number, since it uses less digits than its factorization.

12378208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350 (or 2342 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 12378208 is about 3518.2677555865. The cubic root of 12378208 is about 231.3232358253.

The spelling of 12378208 in words is "twelve million, three hundred seventy-eight thousand, two hundred eight".