12391914 has 32 divisors (see below), whose sum is σ = 26472960. Its totient is φ = 3855600.

The previous prime is 12391913. The next prime is 12391927. The reversal of 12391914 is 41919321.

It is not an unprimeable number, because it can be changed into a prime (12391913) 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, 7329 + ... + 8859.

It is an arithmetic number, because the mean of its divisors is an integer number (827280).

Almost surely, 2^12391914 is an apocalyptic number.

12391914 is an abundant number, since it is smaller than the sum of its proper divisors (14081046).

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

12391914 is a wasteful number, since it uses less digits than its factorization.

12391914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626.

The product of its digits is 1944, while the sum is 30.

The square root of 12391914 is about 3520.2150502491. The cubic root of 12391914 is about 231.4085833108.

The spelling of 12391914 in words is "twelve million, three hundred ninety-one thousand, nine hundred fourteen".