12378822 has 32 divisors (see below), whose sum is σ = 26415072. Its totient is φ = 3853824.

The previous prime is 12378809. The next prime is 12378833. The reversal of 12378822 is 22887321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15628 + ... + 16400.

It is an arithmetic number, because the mean of its divisors is an integer number (825471).

Almost surely, 2^12378822 is an apocalyptic number.

12378822 is an abundant number, since it is smaller than the sum of its proper divisors (14036250).

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

12378822 is a wasteful number, since it uses less digits than its factorization.

12378822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952.

The product of its digits is 10752, while the sum is 33.

The square root of 12378822 is about 3518.3550133550. The cubic root of 12378822 is about 231.3270605609.

The spelling of 12378822 in words is "twelve million, three hundred seventy-eight thousand, eight hundred twenty-two".