12279018 has 16 divisors (see below), whose sum is σ = 24722496. Its totient is φ = 4065600.

The previous prime is 12279017. The next prime is 12279019. The reversal of 12279018 is 81097221.

It is an interprime number because it is at equal distance from previous prime (12279017) and next prime (12279019).

It is not an unprimeable number, because it can be changed into a prime (12279011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5871 + ... + 7682.

It is an arithmetic number, because the mean of its divisors is an integer number (1545156).

Almost surely, 2^12279018 is an apocalyptic number.

12279018 is an abundant number, since it is smaller than the sum of its proper divisors (12443478).

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

12279018 is a wasteful number, since it uses less digits than its factorization.

12279018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13709.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 12279018 is about 3504.1429765351. The cubic root of 12279018 is about 230.7036923461.

The spelling of 12279018 in words is "twelve million, two hundred seventy-nine thousand, eighteen".